Galaxy A21s to Buy: Is It Worth It in 2026? Price, Specs & Guide

It’s not every day that a five-year-old smartphone still sparks interest among budget buyers. But the Samsung Galaxy A21s, released in June 2020 with a 5000 mAh battery and 48 MP camera, continues to appear on refurbished marketplaces — and for good reason. This guide examines whether the A21s is still a sensible buy in 2026, covering current prices, specs, and the one big catch: its software updates ended in 2023.

Release date: June 2020 (Samsung Newsroom) · Battery capacity: 5000 mAh (Samsung Newsroom) · Display: 6.5‑inch HD+ Infinity‑O (Samsung UK) · Processor: Exynos 850 (GSMArena) · Main camera: 48 MP quad camera (Samsung Newsroom) · Original OS: Android 10 (upgradable to 12) (GSMArena)

Six key specs, one snapshot: the Galaxy A21s was built around endurance, not speed.

Is the Samsung Galaxy A21s worth buying?

Pros and cons of buying a Galaxy A21s in 2026

Specifications overview

Ten specs that define the A21s, one pattern: Samsung cut corners on the screen and chip to keep the battery large and the price low.

Alternatives to consider

• Samsung Galaxy A03s — newer (2021), still receives updates, similar price range (GSMArena)
• Moto G Power (2022) — 5000 mAh battery, cleaner software, longer support promise (GSMArena)
• Nokia G20 — Android 11, two years of security updates still available (GSMArena)

The pattern: every alternative offers at least one more year of security patches. For $20‑$30 more you avoid the A21s’ biggest liability.

How much does a Samsung Galaxy A21s cost?

Current prices for refurbished and used models

On Back Market, a Good condition Galaxy A21s starts around €120 (~$130) (Back Market). eBay listings show used units ranging from $80 to $150 depending on storage and screen condition (eBay search). Carrier‑unlocked models tend to command a premium of $20‑$30.

Price comparison across retailers

Two retailers, two pricing philosophies: Back Market offers graded, tested devices with a warranty; eBay gives you the lowest possible price but no quality guarantee.

Why this matters: a Back Market unit with a warranty is safer for a buyer who wants to use the A21s for another two years. eBay’s lower prices suit someone treating it as a disposable burner phone.

How much is my Galaxy A21s worth?

Factors affecting trade-in value

Condition (cracks, dents, battery health) and carrier lock status are the two biggest levers. A mint, unlocked A21s might fetch $100 on eBay; a locked unit with a cracked back could go for $50 (eBay search). Samsung’s own trade‑in program reportedly offers as little as $15 for the A21s (Samsung Trade‑In).

Average resale value in 2026

Based on completed eBay listings, a used Galaxy A21s in fair condition sells for about $70‑$100, depending on storage size (eBay search). That’s a drop of roughly 85% from its original launch price of $199 (GSMArena).

The implication: if you already own an A21s, selling it privately makes more sense than trading it in. The $15 trade‑in credit barely covers a coffee.

Is the Samsung Galaxy A21s outdated?

Software update status

SamMobile confirmed in early 2023 that the Galaxy A21s would receive no further software updates (SamMobile). That means no security patches for CVEs discovered after January 2023. For a phone handling banking apps or personal data, this is a hard stop.

Performance in 2026

• Basic tasks (calls, messages, social media) — still usable but app load times are noticeably slower vs. a 2024 budget phone (GSMArena)
• Gaming — limited to lightweight titles; PUBG Mobile runs at low settings with stutter
• Multitasking — 3 GB RAM struggles with more than 3 apps

How old is a Samsung Galaxy A21s?

Release date and age

Samsung announced the Galaxy A21s on 15 May 2020 (Samsung Newsroom). As of early 2026, the device is nearly six years old. Battery degradation is virtually certain — expect 70‑80% of original capacity at best.

What to check before buying a used unit

• Battery health: use a diagnostic app (e.g., AccuBattery) to check capacity
• Screen condition: look for burn‑in or pressure marks on the LCD
• Carrier lock: ensure it’s unlocked for your network
• Charging port: USB‑C ports wear out; test with a cable

The catch: a $80 A21s that needs a $40 battery replacement is suddenly a $120 phone — close to the price of a newer, supported alternative.

What we know vs what’s unclear

• Confirmed facts: the A21s launched June 2020, packs a 5000 mAh battery and 48 MP camera, and received its last security update in January 2023.
• What’s unclear: the exact price you’ll pay varies widely by seller and condition; new old stock is rare and may have a degraded battery.

Bad news for Galaxy A21s users: No more software updates.

SamMobile, early 2023

The Galaxy A21s offers a long-lasting battery and quad camera, perfect for everyday use.

Samsung Newsroom, launch announcement

For a buyer in 2026, the choice is clear: pick the Galaxy A21s only if you need a disposable phone for non‑sensitive tasks and are willing to accept zero future support. Otherwise, spend the extra $30‑$50 on a newer budget model that still receives security patches — or your data security becomes a gamble you can’t afford.

Related reading: iPhone SE 3rd Generation – Specs, Release & Buying Guide · Apple Watch Series 10 Review: Health, Price & Value

For those considering a purchase, Galaxy A21s deals in Ireland offer a similar value proposition with regional pricing and availability.

Frequently asked questions