Galaxy A21 battery and screen — how do they hold up?

The battery was always the A21's best trick — a large pack delivering genuine two-day endurance for light users — while the HD+ display was modest at launch and remains so. Used units hinge on battery health more than any other factor. A fresh pack restores the phone's one luxury.

Is the Galaxy A21 still usable in 2026?

Barely, for essentials — calls, messaging, and music survive, while anything app-heavy tests its minimal RAM and dated chip immediately. Updates ended long ago, so it belongs on light or emergency duty. As a free loaner phone it's fine; as a purchase, only at giveaway money.

How much is a Samsung Galaxy A21 worth used?

Twenty-five to fifty dollars in honest working condition — bottom-shelf pricing for a basic 2020 phone, with the big battery the feature that still sells it. Screen condition moves the number more than anything. Compare A21 listings on Shopfox when they appear.

Samsung Galaxy A21 Cell Phones Reviews & Ratings

Name: Samsung Galaxy A21 Cell Phones
Brand: Samsung
Rating: 4.7 (195 reviews)

Samsung Galaxy A21 Cell Phones

$82.96

Prices last updated Sep 22, 2026

Samsung4.74.7

(195 reviews)

$82.96

Prices last updated Sep 22, 2026

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3 sellers & 1 platforms

SKU	Platform	Merchant	Delivery	Return Policy	Price	Shipping
BlackBoost Mobile32GB	GenuineTechShopLowest Price	GenuineTechShop 5.0(340)	22 - 28 da...	30 days re...	$82.96	Free
BlackUnlocked32GB	easybuy0802	easybuy0802 4.9(549)	27 - 33 da...	30 days re...	$117.19	$8.59
BlackUnlocked32GB	Fondrose WirelessFastest	Fondrose Wireless 5.0(4679)	2 - 7 days	30 days re...	$159.99	$15.45

GenuineTechShop

Lowest Price

$82.96

BlackBoost Mobile32GB

GenuineTechShop5.0 (340)Free

22 - 28 da...30 days re...

easybuy0802

$117.19

BlackUnlocked32GB

easybuy08024.9 (549)$8.59

27 - 33 da...30 days re...

Fondrose Wireless

Fastest

$159.99

BlackUnlocked32GB

Fondrose Wireless5.0 (4679)$15.45

2 - 7 days30 days re...

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Side-by-Side Comparison

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Samsung Galaxy A21 Cell Phones

4.7(36)

$82.96

Avg 2.2

1.Built around fast charging and a 4000mAh battery for users who need quick top-ups and dependable daily use.

2.A practical fit for budget-conscious buyers who value charging speed and reliable performance.

Budget-conscious buyersAndroid users

Quick chargingDaily reliability

not specified

Android

not specified

3 GB

Octa Core

6.5 in

720 x 1560 (HD+)

not specified

TFT

4000 mAh

not specified

16MP (Main) + 8MP (Ultra-Wide) + 2MP (Macro) + 2MP (Depth)

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2.A great choice for iOS users who want the best performance in a compact Pro form factor.

1.Offers a solid iOS experience with Face ID and reliable performance at a budget-friendly price, backed by strong user satisfaction on value.

2.A practical choice for those seeking essential Apple features like wireless charging and water resistance without the latest premium cost.

1.Renewed iPhone 12 delivers the core Apple experience with Face ID, OLED display, and 5G, verified for like-new performance.

1.Built around fast 20W charging and a vivid 6.5-inch OLED display for users who want quick top-ups and premium visuals in a reliable iPhone.

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1.Its compact 5.4-inch OLED display and lightweight 4.76 oz design make it one of the most pocketable iPhones, ideal for one-handed use.

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Power usersiOS loyalists

Smooth multitaskingHigh-performance gaming

Budget-conscious usersApple loyalists

Everyday reliabilityCasual photography

Apple loyalistsStudents

Everyday iOS useSecure Face ID unlocking

Budget-conscious iPhone fansRefurbished shoppers

Quick rechargingOLED viewing experience

Compact phone fansiOS users

One-handed useDaily pocket carry

not specified

iOS

not specified

Hexa Core

6.1 in

6.5 in

5.4 in

2556 x 1179

1792 x 828 Pixels

2532 x 1170 Pixels

2688 x 1242 Pixels

2340 x 1080

120 hertz

not specified

OLED

LCD

OLED

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—

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—

not specified

48 MP

12 MP

—

Reviews & Ratings

(195)

2.6

195 reviews

👍 Pros

👎 Cons

Performance

1.5

30%

The device suffers from significant performance issues. Users frequently reported 'ghost touching,' where the phone types or apps open by themselves, alongside extreme lag, freezing, and a very slow user interface. Many noted it has insufficient RAM for modern apps.

Performance

1.5

30%

Camera Quality

3.0

60%

Camera performance is a mixed bag; while some users found the photos surprisingly good for a budget device, others experienced technical failures like constant flickering and autofocus issues that rendered facial recognition useless.

Camera Quality

3.0

60%

Battery Life

2.2

44%

Battery reliability is highly inconsistent. A few users reported a full day of use, but a large number of reviewers complained about fast battery drain, charging port failures, and the device eventually refusing to power on at all.

Battery Life

2.2

44%

Display Quality

2.5

50%

The screen is praised for its large size and clarity initially. However, it is criticized for being made of cheap plastic that is unresponsive to swipes. Serious defects like 'black screen of death,' white lines, and flickering were widely reported.

Display Quality

2.5

50%

Build & Design

1.8

36%

While the physical design looks modern, the build quality is poor with non-scratch-resistant plastic. The most critical failure is the 'false advertising' regarding its 'unlocked' status, with many units arriving carrier-locked to specific providers.

Build & Design

1.8

36%

Keywords

User Voices

5.0AMAZONSep 15, 2025

Yailenis A.

Super Bueno

This phone is absolutely fantastic. High quality and works perfectly. Highly recommended!

1.0AMAZONSep 13, 2025

Ross M.

Decia que era nuevo y no es asi

The description claimed the phone was new, but that's a lie. It arrived with a large scratch on the back, and the camera keeps flickering constantly.

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