Oscal Flat 3C vs Vivo iQOO 15 Ultra
The Oscal Flat 3C (2026) runs on the Unisoc Tiger T310, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $130 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 34/100 (a 55-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 5000); the main camera is 32 MP vs 50 MP; the Vivo iQOO 15 Ultra has NFC for contactless payments, the Oscal Flat 3C doesn't; the Oscal Flat 3C is noticeably lighter (199g vs 227g).
Profile comparison
Category scores
Oscal Flat 3C
Vivo iQOO 15 Ultra
What makes Oscal Flat 3C better?
- Lighter: 199g vs 227g
- Cheaper at launch: $130 vs $799
- Better portability (50/100 vs 35/100)
What makes Vivo iQOO 15 Ultra better?
- Bigger battery: 7400 vs 5000 mAh
- Better main camera: 50MP vs 32MP
- Higher refresh rate: 144Hz vs 60Hz
- Better camera (78/100 vs 22/100)
- Longer battery life (92/100 vs 52/100)
- Better display (99/100 vs 32/100)
Comparison verdict
Comparing the Oscal Flat 3C vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 55 points higher (89/100 vs 34/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 22/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 52/100). Value score: Oscal Flat 3C — 48/100, Vivo iQOO 15 Ultra — 92/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Oscal Flat 3C (99/100 vs 32/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Oscal Flat 3C (78/100 vs 22/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Oscal Flat 3C (92/100 vs 52/100). In the "portability" category, the Oscal Flat 3C notably outperforms the Vivo iQOO 15 Ultra (50/100 vs 35/100).
Specs comparison
| Specification | Oscal Flat 3C | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | Unisoc Tiger T310 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | — | 4602290 | |
| Geekbench Single | — | 3639 | |
| Geekbench Multi | — | 11047 | |
| Display | 6.6" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 720x1612 | 1440x3168 | |
| Refresh rate | 60 Hz | 144 Hz | |
| Battery | 5000 mAh | 7400 mAh | |
| Charging | — | 120W | |
| Wireless charging | 0W | 50W | |
| Main camera | 32 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 13 MP | 32 MP | |
| RAM | 4GB | 12GB / 16GB / 24GB | |
| Storage | 64GB / 128GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | — | 8000 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 165.3×76.7×8.9 mm | 163.7×76.8×8.7 mm | |
| Weight | 199 g | 227 g | |
| Launch price | $130 | $799 |
Camera comparison
Oscal Flat 3C
- Main: 32MP
- Front: 13MP
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Oscal Flat 3C
- 6.6" IPS LCD
- Resolution: 720x1612
- Refresh rate: 60 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Oscal Flat 3C
- 5000 mAh
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Benchmarks
Launch prices and where to check today's
Launch price difference: $669. Oscal Flat 3C was $669 cheaper at launch.
Detailed category analysis
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Oscal Flat 3C (99/100 vs 32/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Oscal Flat 3C (78/100 vs 22/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Oscal Flat 3C (92/100 vs 52/100).
portability
In the "portability" category, the Oscal Flat 3C notably outperforms the Vivo iQOO 15 Ultra (50/100 vs 35/100).
Frequently asked questions
Which is better: the Oscal Flat 3C or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Oscal Flat 3C by 55 points (89/100 vs 34/100).
What is the rating of the Oscal Flat 3C and the Vivo iQOO 15 Ultra?
The Oscal Flat 3C has a MobileRank rating of 34/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Oscal Flat 3C or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 22/100).
Should you choose the Oscal Flat 3C over the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.