Buy used:
Used: Acceptable | Details
Condition: Used: Acceptable
Added to

Sorry, there was a problem.

There was an error retrieving your Wish Lists. Please try again.

Sorry, there was a problem.

List unavailable.

Samsung Galaxy A51 Factory Unlocked Cell Phone | 128GB of Storage | Long Lasting Battery | Single SIM | GSM or CDMA Compatible | US Version | Black

4.4 4.4 out of 5 stars 10,202 ratings

Sustainability features

This product has sustainability features recognized by trusted certifications.

Energy efficiency

Conserves energy compared to similar products.

As certified by
EPEAT EPEAT

EPEAT addresses the sustainability impacts of electronic products. An EPEAT registered product must meet required criteria and can meet optional criteria. The criteria depend on the type of product and can include energy efficiency, reduction of fluorinated greenhouse gases (F-Gases), and end of life management. Products meeting 50% - 75% optional criteria are “Silver” and those meeting more than 75% are “Gold”.

Learn more about this certification

Certification Level

GOLD
Part of
Climate Pledge Friendly

To see product details, add this item to your cart. You can always remove it later.
FREE Returns
Galaxy A51
Unlocked
Black
128 GB

About this item

  • Introducing the new A Series: The features you’ve been waiting for in your unlocked cell phone. Take crisp pics with the 48MP quad camera. Immerse yourself in a spacious high definition screen, powered by a long-lasting, fast charging battery
  • Unlocked by Samsung: Pick more than just your new cell phone. With your unlocked device, choose your preferred carrier, data plan, services, features and apps, and get your phone exactly how you want it
  • Crisp. Colorful. Captivating. Dive into edge-to-edge color with an expansive 6. 5” Infinity-O Display featuring a Super AMOLED screen that brings cinematic clarity right to your fingertips
  • Pro-grade shots in just a snap: From epic landscape shots and dramatic portraits, to macro angles that reveal intricate textures and detail, this impressive quad camera has a lens for whatever inspires you. Devices will work on any compatible network. Wireless voice, data and messaging services are compatible with most GSM networks such as AT&T and T-Mobile and CDMA networks such as Verizon, Sprint and US Cellular
  • Smooth, stable shots: Take remarkably smooth video of fast-moving action in crisp, UHD quality. Its top-notch stability makes photos and videos look super smooth with minimal blur
  • Secure with a single touch: Lock and unlock your phone with just a touch, thanks to the in-display fingerprint sensor. No staring contests with your screen or complicated passcodes required
  • Store more, do more: Save all the things that matter with 128GB of built-in memory. If you need more, you can expand storage up to 512GB of storage with a Samsung microSD card (sold separately)

Additional Details

Verified by Transparency
The brand applies a unique Transparency code to each item. We verify this code before shipping. You can verify this code using the Amazon Shopping app to confirm it comes from the brand and view additional product details.
Verified by Transparency
Each item has a unique code that we verify before shipping. Learn more
Bites for your bracket
Get ready for March Madness Find a Fresh store

From the brand

Compare with similar items

This Item
Samsung Galaxy A51 Factory Unlocked Cell Phone | 128GB of Storage | Long Lasting Battery | Single SIM | GSM or CDMA Compatible | US Version | Black
Samsung Galaxy A51 Factory Unlocked Cell Phone | 128GB of Storage | Long Lasting Battery | Single SIM | GSM or CDMA Compatible | US Version | Black
Recommendations
SAMSUNG Galaxy S23 FE Cell Phone, 256GB, Unlocked Android Smartphone, Long Battery Life, Premium Processor, Tough Gorilla Glass Display, Hi-Res 50MP Camera, US Version, 2023, Purple
dummy
SAMSUNG Galaxy A54 5G A Series Cell Phone, Unlocked Android Smartphone, 128GB, 6.4” Fluid Display Screen, Pro Grade Camera, Long Battery Life, Refined Design, US Version, 2023, Awesome Black
dummy
SAMSUNG Galaxy A15 5G A Series Cell Phone, 128GB Unlocked Android Smartphone, AMOLED Display, Expandable Storage, Knox Security, Super Fast Charging, US Version, 2024, Blue Black
dummy
Samsung Galaxy S21 5G | Factory Unlocked Android Cell Phone | US Version 5G Smartphone | Pro-Grade Camera, 8K Video, 64MP High Res | 128GB, Phantom Pink (SM-G991UZIAXAA)
dummy
SAMSUNG Galaxy S21+ Plus 5G Factory Unlocked Android Cell Phone 128GB US Version Smartphone Pro-Grade Camera 8K Video 12MP High Res, Phantom Silver
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Price$158.00$668.15$449.99$199.99$599.97$699.99
Delivery
Get it as soon as Thursday, Apr 4
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it Apr 3 - 5
Get it as soon as Wednesday, Apr 3
Customer Ratings
Battery life
4.2
4.0
4.2
4.2
3.9
4.2
Face recognition
4.0
4.0
4.0
4.0
4.2
4.2
Value for money
3.9
4.2
4.4
4.4
2.8
4.1
Fingerprint reader
3.7
4.2
4.2
4.2
4.1
4.0
Touch Screen
4.1
4.0
4.0
Sold By
Amazon Warehouse
Amazon.com
Amazon.com
Amazon.com
Reliant Cellular
SBG Prime
display size
6.5 inches
6.4 inches
6.4 inches
6.5 inches
6.2 inches
6.7 inches
memory capacity
128 GB
256 GB
128 GB
128 GB
128 GB
128 GB
model name
Galaxy A51
Galaxy S23 FE
Galaxy A54 5G
Galaxy A15
O1
T2
operating system
Android
Android 13.0, One UI
Android 13.0
Android 14, One UI
Android
Android
connectivity tech
Bluetooth, Wireless
Wi-Fi, Bluetooth, NFC, USB
Bluetooth, Wi-Fi, NFC, USB
Bluetooth, Wireless
Bluetooth, Wireless
display type
OLED
Dynamic Amoled
AMOLED
AMOLED
AMOLED
AMOLED

From the manufacturer

samsung
samsung
A51, unlocked, samsung
s10 lite

Product guides and documents

What's in the box

  • Handset + Cling
  • STD Battery
  • Travel Adapter
  • Data Cable
  • Looking for specific info?

    Product information

    Warranty & Support

    Product Warranty: For warranty information about this product, please click here

    Feedback

    Samsung

    Samsung Galaxy A51 Factory Unlocked Cell Phone | 128GB of Storage | Long Lasting Battery | Single SIM | GSM or CDMA Compatible | US Version | Black


    Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

    Where did you see a lower price?

    /
    /
    /
    /
    Please sign in to provide feedback.

    Product Description

    The Samsung Galaxy A51 has the features you’ve been waiting for in your smartphone. With a quad cam, including a 48MP main camera, you’ll want to post every pic you take. Videos will look flawlessly smooth thanks to Super Steady OIS mode. Its spacious 6. 5” Super AMOLED screen1 and nearly-borderless Infinity-O Display provide a large playground for everything you touch. And with Fast Charging, you can quickly dive back into your world without missing a moment of it. 1Measured diagonally, the screen size is 6. 5" in the full rectangle and 6. 3" with accounting for the rounded corners. Actual viewable area is less due to the rounded corners and camera lens.

    Sustainability features

    Sustainability features

    This product has sustainability features recognized by trusted certifications.

    Energy efficiency

    Conserves energy compared to similar products.

    As certified by
    EPEAT EPEAT

    EPEAT addresses the sustainability impacts of electronic products. An EPEAT registered product must meet required criteria and can meet optional criteria. The criteria depend on the type of product and can include energy efficiency, reduction of fluorinated greenhouse gases (F-Gases), and end of life management. Products meeting 50% - 75% optional criteria are “Silver” and those meeting more than 75% are “Gold”.

    Learn more about this certification

    Certification Level

    GOLD
    Part of
    Sustainability features
    Climate Pledge Friendly

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    10,202 global ratings

    Customers say

    Customers like the quality, value, and screen of the cellular phone. They mention that it's an amazing phone with great features and a high resolution OLED screen. They are also happy with the camera. That said, opinions are mixed on compatibility, battery life, and charging speed.

    AI-generated from the text of customer reviews

    395 customers mention352 positive43 negative

    Customers like the quality of the cellular phone. They say it's an amazing phone with great features and quality that can't be matched by other phones. They also say it has a great camera, is small, easy to operate, and has good reviews. Overall, customers describe it as a very good all-around mid-range phone that's reliable and solid.

    "...Bottom line: This phone is a very good all-around mid-range phone...." Read more

    "...impressed with the detail, and color on the photo, the phone's camera as so many features, it's going to take me a good week to play with them all...." Read more

    "...Snappy operating system, attractive UI, great camera setup, and beefy enough hardware to keep up with just about anything you'd normally do on a..." Read more

    "Great phone. Price was right, 4G, small, easy to operate with good reviews...." Read more

    349 customers mention246 positive103 negative

    Customers like the value of the cellular phone. They say it's worth every cent, has a great cost-performance ratio, and has s a huge screen at a low price. However, adapters are inexpensive and easily found online.

    "...I don't find any lag on it at all. It's a GREAT phone for the price.There are a couple minor things.The camera is just okay...." Read more

    "Great phone. Price was right, 4G, small, easy to operate with good reviews...." Read more

    "...It's only like 3' long and pretty useless. I ordered a couple of 6' cables from Amazon, and they are very high quality...." Read more

    "...this phone to anyone looking for something with a really great cost:performance ratio...." Read more

    225 customers mention157 positive68 negative

    Customers are mixed about the battery life of the cellular phone. Some mention that it has great battery life, while others say that it's poor for a battery of this size. The battery seems to be deteriorating fairly quickly, and it drains much quicker than any Motorola they've owned.

    "...Visually the screen is stunning.The battery life is just silly. I'm seeing 4 to 5 hours of screen time on a single charge...." Read more

    "...All-day battery life and 15W fast charge are nice too. The screen is the same tempered glass you'd expect from most phones...." Read more

    "...for years but then as happens with older phones, it began to experience battery difficulties...." Read more

    "...background on my lock screen and home screens and the battery still performs like a champ...." Read more

    217 customers mention183 positive34 negative

    Customers like the screen of the phone. They mention that it is crystal clear, has a high resolution, and is OLED. They also say that the pictures are beautiful and the color rendering is fantastic.

    "...The phone also has a relatively large screen, which I also wanted, and has all the 4G LTE bands for T-Mobile including 66 and 71..." Read more

    "...I took a photo at night, and I was impressed with the detail, and color on the photo, the phone's camera as so many features, it's going to take me..." Read more

    "...So no complaints there. The LED panel makes color rendering fantastic. Visually the screen is stunning.The battery life is just silly...." Read more

    "...Snappy operating system, attractive UI, great camera setup, and beefy enough hardware to keep up with just about anything you'd normally do on a..." Read more

    125 customers mention92 positive33 negative

    Customers like the camera of the cellular phone. They say it's amazing, takes good pictures, and has a great setup. Some are impressed with the 4 cameras it has and the great video quality. They also mention that the screen is beautiful and great for watching movies.

    "...Snappy operating system, attractive UI, great camera setup, and beefy enough hardware to keep up with just about anything you'd normally do on a..." Read more

    "...5.1" for the S-6 verse 6.4" for the A50. I was also impressed with the cameras on the A50. A 25 mega pixel front camera, with 3 rear cameras...." Read more

    "...The camera is good enough. It's better than my last phone, especially at taking shots in darker rooms...." Read more

    "...Any photo it takes looks find on the screen at normal 1x zoom. They look fine when printed on normal sized paper...." Read more

    311 customers mention199 positive112 negative

    Customers are mixed about the compatibility of the cellular phone. Some mention that it works flawlessly, while others say that it didn't work at all. Some say that the phone works great on Tmobile, while other say that Verizon doesn't support it. Some customers also mention that the thumb print reader/scanner only works half the time, while face unlock works well.

    "...This phone works great on Tmobile, the only problem I had, was that my phone was so old, I didnt have a nano sim card, so I had to go to the Tmobile..." Read more

    "Despite a number of other reviews claiming this phone doesn't work on Verizon, I had zero issues...." Read more

    "...The optical fingerprint sensor is hit-or-miss. When it works, it works well and is an incredible and subtle design feature...." Read more

    "...On a good note though the SmartView feature on the phone works extremely well with my Roku...." Read more

    209 customers mention133 positive76 negative

    Customers are mixed about the charging speed of the phone. Some mention that it's very fast and reliable, while others say that it can start to lag a tad. The speed is slow on ATT and the phone seems to lapse with Spotify.

    "...other phones, it has NFC but, more importantly, it just works and does not lag." Read more

    "...It's very fast, fluid and very touch responsive without the lag you might get on a inexpensive phone. So far the photos come out great...." Read more

    "...don't know how good 5g is on other carriers but where I am, the speed is slow on ATT even though the coverage map shows that it should be strong...." Read more

    "...The processor is snappy. The whole thing is very responsive. I don't find any lag on it at all. It's a GREAT phone for the price...." Read more

    115 customers mention21 positive94 negative

    Customers are dissatisfied with the fingerprint reader on the cellular phone. They mention that it is by no means perfect, it doesn't work that great, and that they have trouble getting it to work correctly. Some complain that the sensor is under the display and that it should be on the back of the phone. Overall, customers are not happy with the functionality of the fingerprint scanner.

    "...protector glass that I use seems to make the fingerprint reader unable to recognize my fingerprints, so I would have preferred a separate..." Read more

    "...The optical fingerprint sensor is hit-or-miss. When it works, it works well and is an incredible and subtle design feature...." Read more

    "...I have been having trouble getting the finger print scanner to work correctly. I'll keep playing around with it...." Read more

    "...It was very organic. The location on this phone's fingerprint reader is really poorly thought out, and I suspect that's largely to blame for it's..." Read more

    24 hours later, I'm happy with my purchase
    5 Stars
    24 hours later, I'm happy with my purchase
    10 MONTH UPDATE (August 25, 2021): I was going to wait until the 1 year anniversary before posting an update. However, this one pertains to 5g on ATT. I was on their cheapest prepaid plan where you pay the annual amount which equates to a $25/mth average fee. This plan DID NOT allow connection to the 5g network. The speeds were still very good but I wanted to experience 5g on this phone. So I switched to the $65/mth prepaid plan which gives 22gb of 5g data.My 5g experience was horrible. The speeds usually remained at 1.5mbps to 3.4mbps throughout the day. Only late at night did speeds get up to 43mbps. Tinkering around with the phone I tried to test LTE but could not find Network Mode which should have been under Mobile Networks in the settings. If you can't find it on your A71 5g, simply go to your dialer and enter this string of characters: *#*#4636#*#* It will automatically take you to a menu of 3 options. Choose "Phone Information". Then click the option for "Set Preferred Network Type". Then select LTE only.Lo and behold my speeds were 43mbps to 83mpbs in the middle of the day consistently. I don't know how good 5g is on other carriers but where I am, the speed is slow on ATT even though the coverage map shows that it should be strong. Going to LTE only is giving me speeds faster than broadband. I hope this helps!8 MONTH UPDATE (June 12, 2021):Eight months in and I still have no complaints regarding my purchase of the A71 5G. I'm loving all the updates it has received including Android 11. I have figured out how to successfully get the finger print reader to work 100% of the time. Basically, I've just trained my hand and thumb to place my thumb perfectly where it needs to be. It's like second nature now. Samsung continually updates its customization apps. If you have this phone you really do need to make sure you have the latest version of Good Lock (found in the Samsung store) and its various modules. You'll be able to control the adjustments to just about every facet of the phone. I love the camera on this phone. The shutter speed is average, however, in outdoor lighting the pictures are phenomenal. The wide angle selection for the rear camera and the selfie camera produces excellent shots. One thing I did wish the camera had was motion autofocus. You'll just have to spend flagship money to get a feature like that.Overall my experience with this phone has been excellent. The battery life is still excellent and still charges very quickly. I'm still using video background on my lock screen and home screens and the battery still performs like a champ. I've upgraded my wireless earbuds to Bose from the Galaxy Buds. No BT connection issues at all. My phone also connects to my Win10 laptop via the built in Link to Windows feature. The only drawback is that I still can't get the laptop to show the phone's screen. My laptop is older and doesn't have Mirror Share on it so that might be the reason. On a good note though the SmartView feature on the phone works extremely well with my Roku. I can mirror my phone's screen on my TV through the Roku using this feature. Displaying photos and video to family on a large wide screen TV is amazing but the biggest benefit is displaying Zoom calls on the TV from my phone. I can use the phone as the webcam but then see everything and everyone on the TV.I still highly recommend people get this phone. The features and the quality that you get for the price can't be matched by other phones.2 MONTH UPDATE (Nov 11, 2020):Two months in and I'm still quite happy with the A71 5g. I've removed plenty of the bloat using methods I found on the Internet. Just google "How to Remove Samsung Bloatware without Root technastic". The first link in the results should take you to the article. The method is for more advanced users. You will need to use your computer to assist in the removal.DEALING WITH SPAM CALLS AND TEXTS: During this election season I received non-stop spam calls and texts. No matter how many times I blocked a phone number the calls and texts still came in from new numbers.SOLUTION: I put the phone in "Do Not Disturb" mode in the Settings. This kills all notifications. I then selected to allow notifications from my contacts. I made sure to add companies that I deal with such as banks etc. that may call into my contacts list. The only drawback is that this doesn't apply to Duo or other apps that you may receive messages on. For example, if someone DM's you on Instagram, you won't see the notification.5g ABILITY: I am on AT&T's prepaid plan. To pay the least amount, I paid for a full year. I didn't realize that 5g is not available on most prepaid plans. Oh well. It doesn't really matter much because my use doesn't require downloading super large files. There's no advantage to streaming movies or sending/receiving texts and emails on 5g than on 4g LTE. Loading websites on 5g might be quicker but it's negligible. The only prepaid plan that gives you 5g support on AT&T is their Premium Plus plan for $75/month. I don't believe that 5g is worth the extra $50 per month.Overall the A71 5g is a champ. The screen is crystal clear and the phone operates smoothly even though at 60hz. I've customized it and have removed much of the bloat. The facial recognition is quick and flawless. I have it configured to open directly to the home page-no extra buttons to push or extra swipes to make. I just lift the phone and tip towards my face and it opens to the home screen. Battery life hasn't been a problem. My usage includes 3 to 4 hours of Youtube Music streaming high quality music while connected to Galaxy Bud Live bluetooth earbuds, an hour or so of Youtube videos in 1080p, 3 plus hours on Google News, 3 cumulative hours in Instagram, an ongoing texts throughout the day. I use a video background on the home screen as well as a video background on the lock screen. I usually end the day with about 30%-40%. I then just refill overnight.I'll update again in a few months.----------------------------------------------------------------Quick Update September 15: My neighborhood is right in the center of a 5g area according to the ATT coverage map. However, I have yet to see "5G" appear on my phone. I've only ever seen LTE. I'm not sure what the problem is.Original Review September 10:My A71 5G arrived yesterday. I've spent the last 24 hours customizing it.Here are my First Thoughts:- Screen is amazing. Videos are much better when viewed on Samsung displays.- The phone itself is quite a thin slab. It's thinner than my glass bodied Honor 8 from 2017 which was my daily phone until now. This makes the A71 5G extremely slippery.- The phone has many customization features although not quite as customizable or as easy to customize as my Honor 8.- Back plastic looks good but is still very slippery.- Camera system is more advanced than my Honor 8. Focus, clarity, wide angle, etc, the A71 5g looks to have an awesome camera. I will test out and update this review later.- Fingerprint & facial recognition are consistently accurate if I'm paying attention to what I'm doing. You can't get lazy or you will get errors before it lets you in.- Always On Display is cool but there's no configuration for adding your own photo or video or animated gif- Call quality is excellent- Transferring data from old phone to new phone is kind of a chore. You'll still have to do plenty manually after the automated transfer process- the One UI is buttery smooth just like everyone says.- dismissing apps from the recently used screen is a swipe up rather than swipe rightSurprises I Encountered:- A71 5G doesn't use a Samsung dialer as its native dialer app. It uses an app from Hiya. If you want the app to filter spam then you'll have to give up some privacy to Hiya.- Microsoft apps come already installed. The downside is that you won't be able to get Outlook to access your mail. According to the reviews the app is currently screwed up after a recent update. I couldn't get it to connect to any of my email accounts (non gmail and non hotmail accounts).- There is no native email app installed on the phone. I had to download Samsung Mail from the Play Store.- There's no way to configure ring tones and alert tones for contacts in Google Contacts. I use Hangouts for my permanent personal number from Google Voice. On my Honor 8, I could configure a unique tone for each of my contacts. I could also configure special ring tones. No such luck with the A71 5G.- The charging cord is USB-C to USB-C which means the charging brick has a USB-C socket. This is great when you want to connect the A71 5g to an old phone to transfer files, but it negates my ability to use my newly purchased 6ft USB-C charging cord w/magnetic attachments. The way the cord works is that there is an adapter that fits into the phone's USB-C socket with a round magnetic connector that the cord easily connects to. The cord itself has a magnetic connector on one end and a regular USB male on the other to connect to a charging brick. The A71 5G's charging brick only accepts USB-C.- The phone has a built-in "app lock" type of function. It allows you to put apps and files into a secure folder. The apps or files in the folder can't be opened unless you use your fingerprint or PIN. The surprise here is that when you place an app in the folder, it creates a new instance of that app which means you will still have the app accessible as normal but you will have a new instance of the app which requires secure access. So if you have a dirty Instagram account and a clean account, you can have the clean account logged into the app in the app drawer and the secured version of the app logged into the dirty account. I had to do some Google searches to figure out why I was still able to open an app placed in the secured folder from the regular app drawer.So-so Observations:- 5G speed: I tested at 9:30pm. I live in a suburban area adjacent to a metropolitan city. AT&T supposedly has 5G in my area. I got an average of 45mbps download speed and 7.7mbps upload speed via speedtest.net. I compared that to my broadband speed of 64.7mbps download & 10.25mbps upload with Centurylink using the 5ghz channel on the router. I probably would have gotten better speeds with TMobile but oh well. Let me know what you're getting if you have AT&T with any 5G phone.- Theme customizations. If you come from a Honor phone like me you'll miss your ability to fully customize your UI such as choosing among a large selection of available navigation buttons; a huge selection of different icon sets and not just icons that are contained inside a square or a circle but true free floating graphics; a user friendly interface to customize lock screen features including wallpaper from within the same theme customization interface. I took for granted that these things were the norm across all devices but not so this Samsung device. You have to go back-and-forth through multiple menu items to make changes to different parts of the UI. For example, if I want to place my own personal video as wallpaper on my lock screen, I have to do it via a handful of menus rather than the Themes app which itself, btw, can only be accessed via the Settings menu.More observations to follow.
    Thank you for your feedback
    Sorry, there was an error
    Sorry we couldn't load the review

    Top reviews from the United States

    Reviewed in the United States on June 15, 2020
    Model Name: Galaxy A51Wireless Provider: UnlockedColor: BlackMemory Storage Capacity: 128 GBVerified Purchase
    3 people found this helpful
    Report
    Reviewed in the United States on January 1, 2020
    Model Name: Galaxy A50Wireless Provider: UnlockedColor: BlackMemory Storage Capacity: 64 GBVerified Purchase
    30 people found this helpful
    Report

    Top reviews from other countries

    Translate all reviews to English
    Rafael CN
    1.0 out of 5 stars Broken screen despite heavy duty cover and only 1 month after purchase
    Reviewed in Mexico on May 20, 2022
    Model Name: Galaxy A50Wireless Provider: UnlockedColor: BlackMemory Storage Capacity: 64 GBVerified Purchase
    One person found this helpful
    Report
    MARLENE MACELINA
    4.0 out of 5 stars MUY BUENO PERO BLOQUEADO
    Reviewed in Mexico on November 16, 2021
    One person found this helpful
    Report
    Chua Peng Tong
    4.0 out of 5 stars Loose packaging + no local warranty
    Reviewed in Singapore on July 19, 2021
    Model Name: Galaxy A71Wireless Provider: UnlockedColor: BlackMemory Storage Capacity: 128 GBVerified Purchase
    carlos aguilar
    1.0 out of 5 stars Que no está liberado
    Reviewed in Mexico on January 10, 2022