Samsung
Samsung Galaxy S21
Released 2021 · launch price $799 · refurbished today ~$230
Samsung promised 4 years of OS + security updates from launch.
Software support
updates ended ~2025No more security updates — repairs won't extend the software lifespan.
A Samsung Galaxy S21 launched at $799 and goes for about $230 refurbished today — 71% of its value gone. That refurbished price is the number every repair on this page is measured against, because it is what replacing it actually costs.
Repairs on this phone run from about $53 at the cheap end to around $155 at the expensive one, across 8 common faults. Anything near the top of that range is a serious fraction of what the device is worth.
Security updates are expected to have ended around 2025, which caps what any repair here can buy you. Our calculator returns replace for this device regardless of the repair price, and that is deliberate.
If you are replacing it anyway, the Samsung Galaxy S23 costs about $420 refurbished — $190 more than a like-for-like Samsung Galaxy S21.
Samsung Galaxy S21 repair costs by fault
Typical independent-shop pricing, with the official Samsung figure where one is published. Each row links to the full repair-or-replace breakdown.
| Fault | Shop | Official | DIY parts |
|---|---|---|---|
| Cracked or broken screen | $95–$140 | $174 | $145–$170 |
| Battery (drains fast / won't hold charge) | $45–$75 | $95–$130 | $25–$45 |
| Charging port (won't charge / loose cable) | $55–$85 | $90–$125 | $25–$40 |
| Cracked back glass | $75–$120 | $140–$200 | not advised |
| Camera (blurry / won't focus / black) | $65–$100 | $120–$170 | $30–$50 |
| Water / liquid damage | $100–$180 | $190–$270 | not advised |
| Speaker or microphone not working | $40–$65 | $80–$115 | $20–$30 |
| Won't turn on / no power | $110–$200 | $190–$270 | not advised |
US dollars, 2026. “Not advised” means the repair is not realistically DIY-able on this device. Where these numbers come from →
Considering an upgrade? See the Samsung Galaxy S23.
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