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Deal.ai › Samsung
Samsung
Samsung Galaxy A21 Smartphone

Samsung Galaxy A21 Smartphone

3.7(15 ratings)

Best price now

$89.99at eBayChecked 1 h ago

42% under what the other stores charge

Compared across 8 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

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Price facts

  • Lowest price today: $89.99 at eBay (checked Nov 15, 2026).
  • Checked at 8 stores.

Our take on the Samsung Galaxy A21 Smartphone

The Galaxy A21 is Samsung's entry-level big-screen phone: a 6.5-inch HD+ Infinity-O TFT display, a quad rear camera with an ultra-wide, macro and depth sensor, and a 4,000 mAh battery with fast charging. It suits budget buyers who want a large screen and a fingerprint sensor without spending much. Against rivals in its class, the HD+ resolution and 60 Hz TFT panel are modest, and the 13 MP front camera is the standout. Owners rate it around 3.7 out of 5, with praise for the screen size and battery and complaints about performance and camera quality in low light.

Best forBudget buyers who want a large screenLight users: calls, messaging, videoA first smartphone or a backup phonePeople who prefer a rear fingerprint sensor
Pros
  • Large 6.5-inch Infinity-O display
  • 4,000 mAh battery with fast charging
  • Quad rear camera with ultra-wide and macro lenses
  • 13 MP front camera for selfies
  • Rear fingerprint sensor and face-style proximity sensors
Cons
  • HD+ resolution on a 6.5-inch screen looks soft
  • TFT panel at 60 Hz is basic
  • Modest chip and memory for heavy apps and games
  • Low-light photos are weak
  • Non-removable battery

Samsung Galaxy A21 Smartphone prices at every store

  • eBayNew

    In stock

    $89.99Checked 1 h ago
    Visit eBay
  • WalmartNew

    In stockSold by RSRTechnologies

    $129.99Checked 1 h ago
    Visit Walmart
  • Cellification.comNew

    In stock

    $155.79Checked 1 h ago
    Visit Cellification.com
  • Wisetek MarketNew

    Availability unknown

    $97.99Checked 1 h ago
    Visit Wisetek Market
  • Cell2GetNew

    Availability unknown

    $99.95Checked 1 h ago
    Visit Cell2Get
  • ElectronicsForce.comNew

    Availability unknown

    $161.34Checked 1 h ago
    Visit ElectronicsForce.com
  • MercariNew

    Availability unknown

    $165.00Checked 1 h ago
    Visit Mercari
  • Newegg.comNew

    Availability unknownSold by BTE Outlet

    $515.99Checked 1 h ago
    Visit Newegg.com

Store links may earn us a commission.

Samsung Galaxy A21 Smartphone price history

Lowest price we've seen: $89.99 on Nov 15 at eBay. Tracked across 8 stores since Nov 15.

What reviewers say

  • 3.7 / 515 ratings

Owners give the Galaxy A21 middling marks: they like the big screen, the battery life and the price-to-feature mix, but many find it slow and the cameras disappointing in dim light.

What people mention
  • DisplayMixedOwners like the size but say HD+ resolution looks soft on a 6.5-inch panel.
  • BatteryPraisedReviewers report it lasts a full day of light use and charges quickly.
  • PerformanceCriticisedUsers say it lags with several apps open and struggles with games.
  • CameraMixedThe quad setup is versatile in daylight, but low-light shots are noisy and soft.
  • BuildMixedIt feels sturdy for the class, though the plastic body and TFT screen feel basic.

About the Samsung Galaxy A21 Smartphone

The Samsung Galaxy A21 is a smartphone with a 6.5-inch Infinity-O touch screen. The TFT display has HD+ resolution, a 20:9 aspect ratio and a 60 Hz refresh rate.

It has a quad rear camera system with an ultra wide-angle camera, a macro lens and a depth sensor. Video records at 1080p and 30 fps, and digital zoom goes up to 8x. The front camera is 13 MP.

The 4000 mAh battery is non-removable and supports fast charging. The phone has a fingerprint sensor, an accelerometer and a proximity sensor.

Display size
6.5 in
Display type
Infinity-O Display, TFT, touch screen
Resolution
HD+
Pixel density
~270 ppi
Aspect ratio
20:9
Refresh rate
60 Hz
Rear camera
Quad rear camera with ultra wide-angle camera, macro lens and depth sensor
Front camera
13 MP
Aperture
f/2.2 and f/2.0 (front camera)
Video
1920 x 1080 (1080p) at 30 fps
Zoom
Up to 8x digital zoom
Battery
4000 mAh, non-removable
Charging
Fast charging
Standby time
Up to 534 hrs
Talk time

Specifications

SIM Card Type
Nano SIM
Product Type
Smartphone
Hardware Sensors
Accelerometer, Fingerprint Sensor, Proximity Sensor
Stylus Support
No
Display Size
6.5 in
Touch Screen
Yes
Display Resolution
HD+

Questions and answers

Is the Galaxy A21 good for gaming?
Only for light games. The chip and memory are modest, and owners report lag with demanding titles.
Does it have a fingerprint sensor?
Yes, a rear-mounted fingerprint sensor, plus an accelerometer and proximity sensor.
How is the battery life?
The 4,000 mAh battery is rated for up to 534 hours standby and about 54 hours of talk time, and owners say it lasts a full day.
What cameras does it have?
A quad rear camera with ultra-wide, macro and depth sensors, plus a 13 MP front camera. Video tops out at 1080p at 30 fps.
Does it support 5G?
No. The Galaxy A21 is a 4G LTE phone.
Is the screen good for watching video?
It is large at 6.5 inches, but the HD+ TFT panel at 60 Hz is basic and looks soft up close.
Where is the Samsung Galaxy A21 Smartphone cheapest?
At eBay, for $89.99, 42% under what the other stores charge, as of our latest check.
What do buyers say about the Samsung Galaxy A21 Smartphone?
Rated 3.7 out of 5 from 15 ratings.
Where can I buy the Samsung Galaxy A21 Smartphone?
8 stores we checked sell it, including eBay, Wisetek Market, Cell2Get, Cellification.com, ElectronicsForce.com.
3240 minutes
Sensors
Accelerometer, fingerprint sensor, proximity sensor
SIM type
Nano SIM
Stylus support
No
Display Pixel Density
~270 ppi density
Display Technology
TFT
Display Type
Infinity-O Display
Display Aspect Ratio
20:9 ratio
Display Refresh Rate
60 Hz
Display Highlights
Touch screen
Battery Charging Technology
Fast Charging
Battery Capacity
4000 mAh
Battery Standby Time
Up to 534 hrs
Battery Talk Time
3240 minutes
Removable Battery
Non-removable
Camera Resolution
13 MP (front camera)
Camera Zoom
8x digital zoom
Camera Video Resolution
1920 x 1080 (1080p) at 30 fps
Camera Aperture
f/2.2 (Front Camera), F/2.0 (Front Camera)
Camera Highlights
Ultra Wide-Angle Camera, Depth sensor, Macro lens, Quad Rear Camera
Digital Zoom
Up to 8x

Stores we've priced the Samsung Galaxy A21 Smartphone at

  • Cell2Get deals and prices
  • ElectronicsForce.com deals and prices
  • Newegg deals and prices
  • Walmart deals and prices

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