Samsung Galaxy S21 Ultra vs Samsung Galaxy Z Fold 6
37.2Performance60.9
56.3Display58.6
72Camera46.9
46.4Battery47.9
78.7Features94.7
7 spec wins — Samsung Galaxy S21 Ultra6 spec wins — Samsung Galaxy Z Fold 6
InnoReviews verdict
Samsung Galaxy Z Fold 6 wins this phone face-off, 58.4 to 53.9, pulling ahead mainly in performance (+24) 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
- 300% higher Front camera: 40 MP vs 10 MP
- 233% higher Optical zoom: 10 x vs 3 x
- 116% higher Main camera: 108 MP vs 50 MP
- 38% higher Pixel density: 515 ppi vs 374 ppi
- Lower launch price: $1,199 vs $1,900
Reasons to pick the Samsung Galaxy Z Fold 6
- Stronger performance score: 61 vs 37
- Stronger features score: 95 vs 79
- 132% higher AnTuTu 10: 1,820,000 vs 783,817
- 97% higher Geekbench 6 (multi): 7,000 vs 3,550
- 75% higher OS update pledge: 7 years vs 4 years
Display
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Fold 6 |
|---|---|---|
| Screen size | 6.8 ″ | 7.6 ″+12% |
| Panel type | LTPO AMOLED | Foldable Dynamic LTPO AMOLED 2X |
| Resolution | 3200x1440 | 1856x2160 |
| Pixel density | 515 ppi+38% | 374 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,500 nits | 2,600 nits+73% |
| Screen-to-body | — | 90.5 % |
| AnTuTu 10 (CPU) | 263,424Top 88% | — |
| AnTuTu 10 (GPU) | 126,989Top 82% | — |
| AnTuTu 10 (Memory) | 165,563Top 72% | — |
| AnTuTu 10 (UX) | 227,841Top 82% | — |
Performance
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Fold 6 |
|---|---|---|
| Chipset | Samsung Exynos 2100 | Snapdragon 8 Gen 3 for Galaxy |
| AnTuTu 10 | 783,817Top 65% | 1,820,000+132%Top 18% |
| Geekbench 6 (single) | 1,430Top 52% | 2,270+59%Top 18% |
| Geekbench 6 (multi) | 3,550Top 56% | 7,000+97%Top 16% |
| RAM (max) | 12 GB | 12 GB |
| Storage options | 128GB / 256GB / 512GB | 256/512GB/1TB |
| Storage type | UFS 3.1 | UFS 4.0 |
Camera
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Fold 6 |
|---|---|---|
| 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+300% | 10 MP |
| OIS | Yes | Yes |
Battery
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Fold 6 |
|---|---|---|
| Capacity | 5,000 mAh+14% | 4,400 mAh |
| Wired charging | 25 W | 25 W |
| Wireless charging | 15 W | 15 W |
| Active use endurance | — | 10 h |
Design
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Fold 6 |
|---|---|---|
| Weight | 228 g+5% | 239 g |
| Thickness | 8.9 mm+26% | 12.1 mm |
| IP rating | IP68 | IP48 |
| Frame material | Aluminum | Armor Aluminum |
Connectivity
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Fold 6 |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6E | Wi-Fi 7 |
| Bluetooth | 5.2 | 5.3 |
| NFC | Yes | Yes |
| USB | USB-C 3.2 | USB-C 3.2 |
| eSIM | Yes | Yes |
Software
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Fold 6 |
|---|---|---|
| OS at launch | Android 11 (One UI 3.1) | Android 14 (One UI 6.1.1) |
| OS update pledge | 4 years | 7 years+75% |
Audio
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Fold 6 |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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