Ulefone Armor 28 Ultra vs vivo Y31d
55.2Performance28.9
53.7Display42.5
46.8Camera29
94.7Battery70.9
60Features46.7
9 spec wins — Ulefone Armor 28 Ultra4 spec wins — vivo Y31d
InnoReviews verdict
Ulefone Armor 28 Ultra wins this phone face-off, 61.6 to 41.8, pulling ahead mainly in performance (+26) and battery (+24). vivo Y31d still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Ulefone Armor 28 Ultra
- Stronger performance score: 55 vs 29
- Stronger display score: 54 vs 43
- Stronger camera score: 47 vs 29
- Stronger battery score: 95 vs 71
- Stronger features score: 60 vs 47
Reasons to pick the vivo Y31d
- 57% lower thickness: 8.4 mm vs 19.4 mm
- 51% lower weight: 219 g vs 450 g
- Has Stereo speakers — the other doesn't
Display
| Spec | Ulefone Armor 28 Ultra | vivo Y31d |
|---|---|---|
| Screen size | 6.67 ″ | 6.75 ″+1% |
| Panel type | AMOLED | IPS LCD |
| Resolution | 1080x2400 | 720x1570 |
| Pixel density | 395 ppi+54% | 256 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 2,200 nits+76% | 1,250 nits |
| Screen-to-body | — | 85.3 % |
Performance
| Spec | Ulefone Armor 28 Ultra | vivo Y31d |
|---|---|---|
| Chipset | MediaTek Dimensity 9300+ | Qualcomm Snapdragon 6s 4G Gen 2 |
| Geekbench 6 (single) | 2,158Top 29% | — |
| Geekbench 6 (multi) | 7,082Top 22% | — |
| RAM (max) | 16 GB+100% | 8 GB |
| Storage options | 1TB | 128/256GB |
| Storage type | UFS 4.0 | UFS 2.2 |
Camera
| Spec | Ulefone Armor 28 Ultra | vivo Y31d |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.9 | f/2.0 |
| Ultra-wide | 50 MP | — |
| Max video | 8K@30fps | 1080p@30fps |
| Front camera | 50 MP+525% | 8 MP |
| OIS | No | No |
Battery
| Spec | Ulefone Armor 28 Ultra | vivo Y31d |
|---|---|---|
| Capacity | 10,600 mAh+47% | 7,200 mAh |
| Wired charging | 120 W+173% | 44 W |
| Wireless charging | 50 W | — |
Design
| Spec | Ulefone Armor 28 Ultra | vivo Y31d |
|---|---|---|
| Weight | 450 g | 219 g+51% |
| Thickness | 19.4 mm | 8.4 mm+57% |
| IP rating | IP68/IP69K | IP68/IP69 |
| Frame material | — | Plastic |
Connectivity
| Spec | Ulefone Armor 28 Ultra | vivo Y31d |
|---|---|---|
| 5G | Yes | No |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 5 |
| Bluetooth | 5.4 | 5.1 |
| NFC | Yes | No |
| USB | USB-C 3.2 Gen 2 | USB-C 2.0 |
| eSIM | No | No |
Software
| Spec | Ulefone Armor 28 Ultra | vivo Y31d |
|---|---|---|
| OS at launch | Android 14 | Android 16 (OriginOS 6) |
Audio
| Spec | Ulefone Armor 28 Ultra | vivo Y31d |
|---|---|---|
| Stereo speakers | No | Yes |
| 3.5mm jack | Yes | No |
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