Samsung Galaxy S21 Ultra vs Samsung Galaxy Z Flip 8
37.2Performance77.6
56.3Display59.2
72Camera42.1
46.4Battery59.7
78.7Features94.7
5 spec wins — Samsung Galaxy S21 Ultra6 spec wins — Samsung Galaxy Z Flip 8
InnoReviews verdict
Samsung Galaxy Z Flip 8 wins this phone face-off, 64.9 to 53.9, pulling ahead mainly in performance (+40) 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 42
- 300% higher Front camera: 40 MP vs 10 MP
- 116% higher Main camera: 108 MP vs 50 MP
- 32% lower thickness: 8.9 mm vs 13.1 mm
- 29% higher Pixel density: 515 ppi vs 400 ppi
Reasons to pick the Samsung Galaxy Z Flip 8
- Stronger performance score: 78 vs 37
- Stronger battery score: 60 vs 46
- Stronger features score: 95 vs 79
- 195% higher Geekbench 6 (multi): 10,466 vs 3,550
- 108% higher Geekbench 6 (single): 2,977 vs 1,430
Display
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Flip 8 |
|---|---|---|
| Screen size | 6.8 ″ | 6.9 ″+1% |
| Panel type | LTPO AMOLED | Foldable Dynamic LTPO AMOLED 2X |
| Resolution | 3200x1440 | 1080x2520 |
| Pixel density | 515 ppi+29% | 400 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,500 nits | 3,000 nits+100% |
| Screen-to-body | — | 87.1 % |
Performance
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Flip 8 |
|---|---|---|
| Chipset | Samsung Exynos 2100 | Samsung Exynos 2600 (Snapdragon 8 Elite Gen 5 for Galaxy in the US, Canada and China) |
| AnTuTuDifferent AnTuTu versions — not compared | 783,817Bottom 22% | 2,477,554 |
| AnTuTu 11 (CPU) | 263,424Bottom 17% | — |
| AnTuTu 11 (GPU) | 126,989Bottom 33% | — |
| AnTuTu 11 (Memory) | 165,563Bottom 35% | — |
| AnTuTu 11 (UX) | 227,841Bottom 20% | — |
| Geekbench 6 (single) | 1,430Top 46% | 2,977+108%Top 14% |
| Geekbench 6 (multi) | 3,550Bottom 50% | 10,466+195%Top 5% |
| Wild Life Extreme stability | — | 38 %Bottom 2% |
| RAM (max) | 12 GB | 12 GB |
| Storage options | 128GB / 256GB / 512GB | 256GB/512GB |
| Storage type | UFS 3.1 | UFS 4.0 |
Camera
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Flip 8 |
|---|---|---|
| Main camera | 108 MP+116% | 50 MP |
| Main aperture | f/1.8 | f/1.8 |
| Ultra-wide | 12 MP | 12 MP |
| Telephoto | 10 MP | — |
| Optical zoom | 10 x | — |
| Max video | 8K@24fps | 4K@60fps |
| Front camera | 40 MP+300% | 10 MP |
| OIS | Yes | Yes |
Battery
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Flip 8 |
|---|---|---|
| Capacity | 5,000 mAh+16% | 4,300 mAh |
| Wired charging | 25 W | 25 W |
| Wireless charging | 15 W | 15 W |
| Active use endurance | — | 14.2 h |
Design
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Flip 8 |
|---|---|---|
| Weight | 228 g | 180 g+21% |
| Thickness | 8.9 mm+32% | 13.1 mm |
| IP rating | IP68 | IP48 |
| Frame material | Aluminum | Armor Aluminum |
Connectivity
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Flip 8 |
|---|---|---|
| 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 Z Flip 8 |
|---|---|---|
| OS at launch | Android 11 (One UI 3.1) | Android 17 (One UI 9) |
| OS update pledge | 4 years | 7 years+75% |
Audio
| Spec | Samsung Galaxy S21 Ultra | Samsung Galaxy Z Flip 8 |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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