Name: Samsung - Galaxy S21 5G 128GB (T-Mobile)
Brand: Samsung
SKU: 6464393
Rating: 4.5 (69 reviews)

Key Specs
- Screen Size: 6.2 inches (Size of the screen, measured diagonally from corner to corner.)
- Rear-Facing Camera: 12 megapixels
- Built-in Storage: 128 gigabytes
General
- Product Name: Galaxy S21 5G 128GB
- Brand: Samsung
- Model Number: SM-G991UZAATMB
Display
- Screen Size: 6.2 inches (Size of the screen, measured diagonally from corner to corner.)
Camera
- Integrated Camera: Yes - Front and Back
- Front-Facing Camera: 10 megapixels
- Rear-Facing Camera: 12 megapixels
Network
- Carrier: T-Mobile
- Unlocked: false (Can be used with any carrier, typically by exchanging the phone's SIM card with another one compatible for the intended area of service. Can be used with a new or existing cellular service plan.)
- Mobile Hotspot Capability: true (A hotspot-enabled device is able to connect wirelessly to a cellular network and share the connection via Wi-Fi with nearby compatible devices.)
Connectivity
- Headphone Jack: false (The device features an interface that allows for the connection of headphones.)
Compatibility
- Charging Interface(s): USB Type C (The connection for transmitting power to charge the device.)
Power
- Wireless Charging: true
Features
- Model Family: Samsung Galaxy S21 5G
- Maximum Depth Of Water Resistance: 4.9 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- Built-in Storage: 128 gigabytes
Performance
- Operating System: Android 11 (The operating system manages all software and hardware, including files, memory and connected devices. Most importantly, it lets you interact with your device and your programs in a visual way; otherwise, you'd be typing computer code to get anything done.)
- Processor Brand: Qualcomm
Other
- UPC: 400064643937

With Galaxy S21 5G, you have the ability to record in 8K. Which means your videos are double the resolution of 4K video. Or use the 64MP camera for still shots that come out clear whether it’s day or night. Single Take AI transcends the usual restrictions of photo and video editing to capture life’s greatest moments in one single take. Galaxy S21, made for the epic in every day.

Life moves fast. S21 moves faster.: Transform your story sharing, live streaming, video-editing and multi-tasking with hyper fast processor speeds.³
Connectivity built for today. And tomorrow.: Built with 5G connectivity in mind, you can share, scroll, browse and binge in a flash.¹
A camera so good, everyone’s a pro: Zoom in close, take photos and videos like a pro, and capture incredible share-ready moments with our easy-to-use, multi-lens camera.
Trust us, you'll look amazing in 8K video: A night out. Your best friend’s birthday party. Family moments you’ll want to remember forever. Capture your life’s best moments in head-turning, super-smooth 8K video.
Movie-making magic in the palm of your hand: Slide into the director’s chair and create share-ready videos on the spot with multi-cam recording and automatic pro-style effects.

Q: Can I buy the phone under this promotion to replace a phone on a already active T-Mobile account or is this for new activation only?

A: That's what I did. I replaced an existing phone on a current T-Mobile account.

Q: I'm a T-Mobile Customer and want to replace my old phone. Will Best Buy set this new phone up the same way T-Mobile would? i.e. Will Best Buy install and activate the new SIM card and transfer my old phone data over?

A: Yes they will and they do a very good job.

Q: I got the phone but no charger. Is that expected? Selling phone without charger?

A: That is a great question, Ajaymangla! The Galaxy S21 5G only comes with the USB-C cable. Thank you for asking this question. ^Kayla

Q: I'm already a T-mobil prepaid user. If I purchase a locked device. Do I need to buy a new line or change my plan? THX

A: undefined

Q: Can this phone be used to replace a sprint phone since the companies have merged?

A: undefined

Q: Greetings Looking at the Samsung S21 56. The deal here is for T-Mobile. So, I make the full payment. Is the phone still locked to T-Mobile? Can I use it with any other network. Or how hard is it to get it unlocked?

A: undefined

Q: I've used Straight Talk for many, many years. And it works for me, pricewise. Can I use this phone with Straight Talk?

A: undefined

Q: Saw commercial with an S pen and wondering is it included and does it fit in a slot on the phone?

A: Hey there, Chi! The Galaxy S21 5G does not come with an S Pen and does not have a slot for this accessory. Thank you for asking this question. ^Kayla

Customers are saying

Customers are satisfied with the Galaxy S21 5G 128GB's camera quality and battery life, with many praising the excellent picture and video capabilities and long-lasting power. The screen size is also generally well-received, although some prefer a more compact device. However, the lack of a headphone jack and the high initial price point are common criticisms.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

Rated 4 out of 5 stars
Stellar value for the phone, but has antifeatures
Coming to this from a longtime Apple user, this is generally quite the upgrade. The screen is simply unparalleled. Super saturated colors and very bright. Snapdragon 888 handles anything that I throw at it and the high refresh rate runs everything smoothly. Overall, it's a good complete package that is extremely enjoyable. Gorilla Glass Victus is surprisingly capable, I've generally kept my phone scratch-free throughout its life with no screen protector. The camera is the best I've ever used on a phone. That said, there are some annoying antifeatures that prevent this from going to a 5 star. It's not particularly friendly for people transitioning to this from Apple (or for anyone who doesn't own a USB-C power brick), as it only comes with a USB-C to USB-C cable. I can't uninstall certain preloaded apps. There's no microSD or headphone jack.
Posted 3 years ago by JWWW
Rated 3 out of 5 stars
Not an upgrade for previous S models.
Compared to older versions you are getting less for about the same price. S7, S8, S9, S10, S20 series all had MFT, SD Card slots, 2k display, heart rate monitor, some had iris scanner, 3.5mm audio jack, advance download (used wifi and mobile data to accelerate download), more flexibility with the Hotspot settings, among other things. Samsung has kind of gone backwards removing all these features and only focusing I guess on camera. If you don't need 5G stay with your older Galaxy S phone for now and wait it out. In my opinion losing 3.5mm audio jack, SD card slot, and MFT for 5G and 120Hz display is not worth it.
Posted 3 years ago by wbs3333
Rated 5 out of 5 stars
Great little phone
The S21 5g is great if you don't want a huge phone. It is just as fast as the ultra but the size is easier to use one handed. Camera is great and I haven't had any problems with phone. For how I use the phone the battery last easily 2 days.
Posted 4 years ago by HappyShopper