Samsung Galaxy S21 vs Samsung Galaxy S25+
34.4Performance79.3
49.1Display63.6
40.8Camera47.3
36.9Battery54.2
78.7Features94.7
2 spec wins — Samsung Galaxy S2117 spec wins — Samsung Galaxy S25+
InnoReviews verdict
Samsung Galaxy S25+ wins this phone face-off, 66.3 to 43.6, pulling ahead mainly in performance (+45) and battery (+17). Samsung Galaxy S21 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Samsung Galaxy S21
- 540% higher telephoto: 64 MP vs 10 MP
- 10% lower weight: 171 g vs 190 g
- Lower launch price: $799 vs $1,000
Reasons to pick the Samsung Galaxy S25+
- Stronger performance score: 79 vs 34
- Stronger display score: 64 vs 49
- Stronger camera score: 47 vs 41
- Stronger battery score: 54 vs 37
- Stronger features score: 95 vs 79
Display
| Spec | Samsung Galaxy S21 | Samsung Galaxy S25+ |
|---|---|---|
| Screen size | 6.2 ″ | 6.7 ″+8% |
| Panel type | AMOLED | Dynamic AMOLED 2X |
| Resolution | 2400x1080 | 1440x3120 |
| Pixel density | 421 ppi | 513 ppi+22% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,300 nits | 2,600 nits+100% |
Performance
| Spec | Samsung Galaxy S21 | Samsung Galaxy S25+ |
|---|---|---|
| Chipset | Samsung Exynos 2100 | Snapdragon 8 Elite for Galaxy |
| AnTuTu 11 | 746,547Bottom 18% | 2,763,072+270%Top 22% |
| AnTuTu 11 (CPU) | 252,025Bottom 14% | 866,625+244%Top 16% |
| AnTuTu 11 (GPU) | 127,819Bottom 35% | 996,402+680%Top 20% |
| AnTuTu 11 (Memory) | 144,909Bottom 16% | 347,621+140%Top 28% |
| AnTuTu 11 (UX) | 221,794Bottom 18% | 552,424+149%Top 28% |
| Geekbench 6 (single) | 1,430Top 46% | 3,141+120%Top 11% |
| Geekbench 6 (multi) | 3,550Bottom 50% | 10,153+186%Top 7% |
| RAM (max) | 8 GB | 12 GB+50% |
| Storage options | 128GB / 256GB | 256/512GB |
| Storage type | UFS 3.1 | UFS 4.0 |
Camera
| Spec | Samsung Galaxy S21 | Samsung Galaxy S25+ |
|---|---|---|
| Main camera | 12 MP | 50 MP+317% |
| Main aperture | f/1.8 | f/1.8 |
| Ultra-wide | 12 MP | 12 MP |
| Telephoto | 64 MP+540% | 10 MP |
| Optical zoom | — | 3 x |
| Max video | 8K@24fps | 8K@30fps |
| Front camera | 10 MP | 12 MP+20% |
| OIS | Yes | Yes |
Battery
| Spec | Samsung Galaxy S21 | Samsung Galaxy S25+ |
|---|---|---|
| Capacity | 4,000 mAh | 4,900 mAh+23% |
| Wired charging | 25 W | 45 W+80% |
| Wireless charging | 15 W | 15 W |
Design
| Spec | Samsung Galaxy S21 | Samsung Galaxy S25+ |
|---|---|---|
| Weight | 171 g+10% | 190 g |
| Thickness | 7.9 mm | 7.3 mm+8% |
| IP rating | IP68 | IP68 |
| Frame material | Aluminum | Armor Aluminum |
Connectivity
| Spec | Samsung Galaxy S21 | Samsung Galaxy S25+ |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 7 |
| Bluetooth | 5.0 | 5.4 |
| NFC | Yes | Yes |
| USB | USB-C 3.2 | USB-C 3.2 |
| eSIM | Yes | Yes |
Software
| Spec | Samsung Galaxy S21 | Samsung Galaxy S25+ |
|---|---|---|
| OS at launch | Android 11 (One UI 3.1) | Android 15 (One UI 7) |
| OS update pledge | 4 years | 7 years+75% |
Audio
| Spec | Samsung Galaxy S21 | Samsung Galaxy S25+ |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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