Samsung Galaxy S21 Ultra vs Samsung Galaxy S25+
37.2Performance79.3
56.3Display63.6
72Camera47.3
46.4Battery54.2
78.7Features94.7
6 spec wins — Samsung Galaxy S21 Ultra12 spec wins — Samsung Galaxy S25+
InnoReviews verdict
Samsung Galaxy S25+ wins this phone face-off, 66.3 to 53.9, pulling ahead mainly in performance (+42) and features (+16). Samsung Galaxy S21 Ultra 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 Ultra
- Stronger camera score: 72 vs 47
- 233% higher Optical zoom: 10 x vs 3 x
- 233% higher Front camera: 40 MP vs 12 MP
- 116% higher Main camera: 108 MP vs 50 MP
Reasons to pick the Samsung Galaxy S25+
- Stronger performance score: 79 vs 37
- Stronger display score: 64 vs 56
- Stronger battery score: 54 vs 46
- Stronger features score: 95 vs 79
- 685% higher AnTuTu 11 (GPU): 996,402 vs 126,989
- Lower launch price: $1,000 vs $1,199
Display
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy S25+ |
|---|---|---|
| Screen size | 6.8 ″+1% | 6.7 ″ |
| Panel type | LTPO AMOLED | Dynamic AMOLED 2X |
| Resolution | 3200x1440 | 1440x3120 |
| Pixel density | 515 ppi | 513 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,500 nits | 2,600 nits+73% |
Performance
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy S25+ |
|---|---|---|
| Chipset | Samsung Exynos 2100 | Snapdragon 8 Elite for Galaxy |
| AnTuTu 11 | 783,817Bottom 22% | 2,763,072+253%Top 22% |
| AnTuTu 11 (CPU) | 263,424Bottom 17% | 866,625+229%Top 16% |
| AnTuTu 11 (GPU) | 126,989Bottom 33% | 996,402+685%Top 20% |
| AnTuTu 11 (Memory) | 165,563Bottom 35% | 347,621+110%Top 28% |
| AnTuTu 11 (UX) | 227,841Bottom 20% | 552,424+142%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) | 12 GB | 12 GB |
| Storage options | 128GB / 256GB / 512GB | 256/512GB |
| Storage type | UFS 3.1 | UFS 4.0 |
Camera
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy S25+ |
|---|---|---|
| Main camera | 108 MP+116% | 50 MP |
| Main aperture | f/1.8 | f/1.8 |
| Ultra-wide | 12 MP | 12 MP |
| Telephoto | 10 MP | 10 MP |
| Optical zoom | 10 x+233% | 3 x |
| Max video | 8K@24fps | 8K@30fps |
| Front camera | 40 MP+233% | 12 MP |
| OIS | Yes | Yes |
Battery
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy S25+ |
|---|---|---|
| Capacity | 5,000 mAh+2% | 4,900 mAh |
| Wired charging | 25 W | 45 W+80% |
| Wireless charging | 15 W | 15 W |
Design
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy S25+ |
|---|---|---|
| Weight | 228 g | 190 g+17% |
| Thickness | 8.9 mm | 7.3 mm+18% |
| IP rating | IP68 | IP68 |
| Frame material | Aluminum | Armor Aluminum |
Connectivity
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy S25+ |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6E | Wi-Fi 7 |
| Bluetooth | 5.2 | 5.4 |
| NFC | Yes | Yes |
| USB | USB-C 3.2 | USB-C 3.2 |
| eSIM | Yes | Yes |
Software
| Spec | Samsung Galaxy S21 Ultra | 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 Ultra | Samsung Galaxy S25+ |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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