StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › Samsung
Samsung
Samsung Galaxy S21 5G - 128 GB

Samsung Galaxy S21 5G - 128 GB

4.6(1,317 ratings)

Best price now

$179.95at Cell2GetChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Cell2Get
Samsung discount code →

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $179.95 at Cell2Get on Nov 10.

Our take on the Samsung Galaxy S21 5G - 128 GB

The Galaxy S21 5G is Samsung's 2021 flagship phone with a 6.2-inch 120Hz display, triple rear cameras, and 5G. It stands out for its 8K video recording, 64MP telephoto camera, and Single Take mode. Reviewers praise its smooth performance and camera versatility, but note average battery life and the plastic back. It suits users who want a compact flagship with strong cameras and 5G, though it lacks a charger in the box and microSD expansion.

Best forPhotography enthusiastsCompact flagship seekers5G usersSamsung ecosystem fans
Pros
  • Smooth 120Hz display
  • Versatile camera system with 8K video
  • Strong performance
  • 5G connectivity
  • IP68 water and dust resistance
Cons
  • Average battery life
  • No charger in box
  • No microSD slot
  • Plastic back
  • Heats up under load

Samsung Galaxy S21 5G - 128 GB prices at every store

  • Cell2GetNew

    In stockReturn policy

    $179.95Checked Nov 10
    Visit Cell2Get

What reviewers say

  • 4.6 / 51,317 ratings

Reviewers and owners praise the Galaxy S21's smooth display, capable cameras, and solid performance. Common criticisms include average battery life, the lack of a charger, and the plastic back.

What people mention
  • DisplayPraisedThe 120Hz adaptive display is frequently called smooth and responsive.
  • BatteryCriticisedMany users report the 4000mAh battery drains quickly, especially with heavy use.
  • CameraPraisedThe triple camera setup, including 8K video and Single Take, is praised for versatility and quality.
  • BuildMixedSome appreciate the lightweight design, while others dislike the plastic back on a flagship.
  • ChargerCriticisedThe absence of a charger in the box is a common complaint.
  • PerformancePraisedThe Snapdragon 888 processor delivers fast and smooth performance for most tasks.

About the Samsung Galaxy S21 5G - 128 GB

The Samsung Galaxy S21 5G is a 5G smartphone with 128 GB of storage. It has a 6.2-inch adaptive 120Hz display and runs Android 11. It can record video in 8K.

The camera is 64MP. Single Take AI captures photo and video in one take. The phone is dustproof, splashproof and water-resistant.

It supports Dual-SIM with a Nano SIM and an e-SIM. Security options include an under-display fingerprint reader and face recognition. Samsung Pay is supported.

Model
Samsung Galaxy S21 5G, model number SM-G991U
Storage
128 GB
Display
6.2 in, adaptive 120Hz, multi-touch
Camera
64MP, 8K video recording, Single Take AI
Operating system
Android 11
Assistant
Bixby
Color
Phantom gray
Dimensions
6 in high x 2.8 in wide x 0.3 in deep
Weight
6.07 oz
Protection
Dustproof, splashproof, water-resistant
Carrier
T-Mobile
Network
5G; WCDMA (UMTS) / GSM
SIM
Dual-SIM; Nano SIM and e-SIM
Data
GPRS, EDGE, HSDPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1, 5G NR FR2
2G bands

Questions and answers

Does the Galaxy S21 5G support 5G networks?
Yes, the Galaxy S21 5G supports sub-6GHz and mmWave 5G networks, though availability depends on your carrier.
Is there a charger in the box?
No, Samsung does not include a charger or headphones in the box, only a USB-C cable.
Can I expand storage with a microSD card?
No, the Galaxy S21 does not have a microSD card slot, so storage is fixed at 128GB.
How does the Galaxy S21 compare to the Galaxy S20?
The S21 has a newer processor, a 120Hz display that works at FHD+ resolution, and a lower price at launch, but it drops the microSD slot and charger from the S20.
Is the Galaxy S21 water-resistant?
Yes, it has an IP68 rating for water and dust resistance, meaning it can survive being submerged in up to 1.5 meters of fresh water for 30 minutes.
What is the refresh rate of the display?
The 6.2-inch display has an adaptive refresh rate of up to 120Hz, which makes scrolling and animations smoother.
Where is the Samsung Galaxy S21 5G - 128 GB cheapest?
At Cell2Get, for $179.95, as of our latest check.
What do buyers say about the Samsung Galaxy S21 5G - 128 GB?
Rated 4.6 out of 5 from 1,317 ratings.

More from Samsung

  • S
    Samsung Galaxy A16 5G (SM-A166U) AT&T Locked 128GB
    Samsung Galaxy A16 5G (SM-A166U) AT&T Locked 128GB
  • S
    Samsung Galaxy Note20 5G - 128 GB
    Samsung Galaxy Note20 5G - 128 GB
  • S
    SAMSUNG Galaxy A15 5G A Series Cell Phone, 128GB Unlocked Android Smartphone
    SAMSUNG Galaxy A15 5G A Series Cell Phone, 128GB Unlocked Android Smartphone
  • S
    Samsung A065F/DS Galaxy A06 (6.7'' - 128 Go, 4 Go RAM)
    Samsung A065F/DS Galaxy A06 (6.7'' - 128 Go, 4 Go RAM)
  • S
    Samsung - Galaxy A32 5G 64gb (Unlocked)
    Samsung - Galaxy A32 5G 64gb (Unlocked)
  • S
    Samsung Galaxy S20 FE 5G UW - 128 GB
850, 900, 1800, 1900 GSM
3G bands
Band 1, 2, 4, 5, 8 (2100, 1900, 1700, 850, 900)
4G LTE bands
Band 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 46, 48, 66, 71
5G NR bands
n41, n71, n260, n261 (TDD 2500, FDD 600, TDD 39GHz, TDD 28GHz)
Wireless
NFC, Bluetooth 5.0, IEEE 802.11a/b/g/n/ac/ax
Navigation
GPS, GLONASS, BeiDou, Galileo
Security
Fingerprint reader (under display), face recognition, Samsung Knox
Sensors
Accelerometer, ambient light, proximity, barometer, gyro, hall, geomagnetic
Payment
Samsung Pay
Email protocols
POP3, IMAP4, SMTP
Phone functions
Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Other features
Air View, MIMO technology, Smart Select, Smart View, Live message, Screen off memo
SAR
1.58 W/kg (simultaneous), 1.11 W/kg (wireless router), 1.08 W/kg (body), 0.74 W/kg (head)
Samsung Galaxy S20 FE 5G UW - 128 GB
  • T
    Tracfone Samsung Galaxy A15, 64GB, 5G, Black - Prepaid Smartphone [Locked to Tracfone]
    Tracfone Samsung Galaxy A15, 64GB, 5G, Black - Prepaid Smartphone [Locked to Tracfone]
  • W
    Walmart Family Mobile Samsung Galaxy A26, 5G, 128GB, Black, Prepaid Smartphone [Locked to Walmart Family Mobile]
    Walmart Family Mobile Samsung Galaxy A26, 5G, 128GB, Black, Prepaid Smartphone [Locked to Walmart Family Mobile]
  • All Samsung deals and products →

    More smartphones

    • T
      Total Wireless Samsung Galaxy A16, 128GB, 5G, BLACK - Prepaid Smartphone [Locked to Total Wireless]
      Total Wireless Samsung Galaxy A16, 128GB, 5G, BLACK - Prepaid Smartphone [Locked to Total Wireless]
    • S
      Samsung Galaxy S22 5G SM-S901U 128 GB Smartphone
      Samsung Galaxy S22 5G SM-S901U 128 GB Smartphone
    • S
      Samsung Galaxy A56 5G AI, 256GB+12GB RAM, Android Smartphone, Global Version, Unlocked
      Samsung Galaxy A56 5G AI, 256GB+12GB RAM, Android Smartphone, Global Version, Unlocked
    • S
      Samsung Galaxy S21 Ultra 5G, 128GB - Unlocked
      Samsung Galaxy S21 Ultra 5G, 128GB - Unlocked
    • A
      AT&T Samsung Galaxy S21 FE 5G Lavender, 128GB
      AT&T Samsung Galaxy S21 FE 5G Lavender, 128GB
    • V
      Verizon Samsung Galaxy A17 Black 128GB
      Verizon Samsung Galaxy A17 Black 128GB
    • T
      Tracfone Samsung Galaxy A16, 128GB, 5G, Black - Prepaid Smartphone [Locked to Tracfone]
      Tracfone Samsung Galaxy A16, 128GB, 5G, Black - Prepaid Smartphone [Locked to Tracfone]
    • H
      How long will a Samsung Galaxy A26 5G last
      How long will a Samsung Galaxy A26 5G last