How much does a Samsung Galaxy S21 back glass repair cost?

Independent shops typically charge $75–$120, while an official Samsung repair runs $140–$200. These are medium-confidence estimates — confirm with a local quote.

How long will the Samsung Galaxy S21 get software updates?

The Samsung Galaxy S21's software support is expected to have ended around 2025, which weighs against paying for a repair.

Samsung Galaxy S21 back glass: repair or replace?

A 2026 cost comparison — independent shop vs. official repair vs. a refurbished replacement.

Independent shop repair	$75–$120
Official (Samsung) repair	$140–$200
Refurbished replacement	$230
Trade-in of the broken one (other)	$40

medium-confidence estimates — always confirm with a real quote. Prices last reviewed 2026-09-01.

Replace

Replace your Samsung Galaxy S21

It stopped getting security updates in 2025, so a repair buys you a device that's already end-of-life.

For a Samsung Galaxy S21 in good condition, replacing usually makes more sense — It stopped getting security updates in 2025, so a repair buys you a device that's already end-of-life.

What the numbers say

Repair, typical: $98
Share of device value: 43%
Replace, net of trade-in: $190
Support left: ended

At $98, this repair is 43% of the $230 a refurbished Samsung Galaxy S21 costs — enough that it is worth checking the alternatives before booking it.

It launched at $799 and goes for about $230 today, so it has already given up 71% of its value. Most of the depreciation is behind it, which works in a repair's favour — there is less left to lose.

Security updates are expected to have ended around 2025. That is the strongest argument against this repair: you would be paying to extend the life of a device that is already end-of-life in software terms.

Buyback services pay an estimated $40 for Samsung Galaxy S21 units with this kind of damage, so replacing really costs about $190 rather than the full $230 — still $92 more than the repair.

Stepping up to the Samsung Galaxy S23 instead costs about $190 more than replacing like-for-like ($420 refurbished) — often the better use of the money if you were going to replace anyway.

Cracked back glass on the Samsung Galaxy S21 is mostly cosmetic, so weigh a costly official repair against simply using a case that hides it.

Back glass is cosmetic on most phones, but on modern Apple designs it is laser-bonded and surprisingly costly to replace officially.

Get the verdict for your exact situation

Factor in your device's condition and whether you'd DIY.

Run the Samsung Galaxy S21 checker →

Software support

updates ended ~2025

No more security updates — repairs won't extend the software lifespan.

Next step

Buy the Samsung Galaxy S21 on Amazon Trade in your broken one

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Frequently asked

How much does a Samsung Galaxy S21 back glass repair cost?: Independent shops typically charge $75–$120, while an official Samsung repair runs $140–$200. These are medium-confidence estimates — confirm with a local quote.
Is it worth repairing a Samsung Galaxy S21 with cracked back glass?: For a Samsung Galaxy S21 in good condition, replacing usually makes more sense — It stopped getting security updates in 2025, so a repair buys you a device that's already end-of-life.
How long will the Samsung Galaxy S21 get software updates?: The Samsung Galaxy S21's software support is expected to have ended around 2025, which weighs against paying for a repair.