Redmi K80 Ultra vs Vivo Y31s 5G
The Redmi K80 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Vivo Y31s 5G (2026) runs on the Qualcomm Snapdragon 4 Gen 2; estimated prices are $350 and $200. By overall MobileRank rating, the Redmi K80 Ultra leads — 60/100 vs 36/100 (a 24-point difference). Key differences: the Redmi K80 Ultra has the bigger battery (7410 mAh vs 6500); the Redmi K80 Ultra is faster in AnTuTu (2,876,004 vs 560,863); the Redmi K80 Ultra has NFC for contactless payments, the Vivo Y31s 5G doesn't.
Redmi K80 Ultra
Vivo Y31s 5G
- Higher AnTuTu: 2876004 vs 560863
- Better Geekbench Single: 2729 vs 923
- Better Geekbench Multi: 8430 vs 2249
- Bigger battery: 7410 vs 6500 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (61/100 vs 0/100)
- Longer battery life (72/100 vs 54/100)
- Lighter: 207g vs 219g
- Cheaper: $200 vs $350
- Better camera (34/100 vs 32/100)
- Better design/ergonomics (41/100 vs 26/100)
- Better value for money (96/100 vs 86/100)
Comparing the Redmi K80 Ultra vs the Vivo Y31s 5G, the Redmi K80 Ultra scores 24 points higher (60/100 vs 36/100). In the "performance" category, the Redmi K80 Ultra leads (61/100 vs 0/100). In the "battery" category, the Redmi K80 Ultra leads (72/100 vs 54/100). In the "value for money" category, the Vivo Y31s 5G leads (96/100 vs 86/100). In the "performance" category, the Redmi K80 Ultra significantly outperforms the Vivo Y31s 5G (61/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo Y31s 5G and the Redmi K80 Ultra are nearly equal (34/100 vs 32/100). In the "battery" category, the Redmi K80 Ultra notably outperforms the Vivo Y31s 5G (72/100 vs 54/100). In the "design" category, the Vivo Y31s 5G notably outperforms the Redmi K80 Ultra (41/100 vs 26/100). In the "value for money" category, the Vivo Y31s 5G is a bit better (96/100 vs 86/100).
| Specification | Redmi K80 Ultra | Vivo Y31s 5G | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 4 Gen 2 | |
| AnTuTu | 2876004 | 560863 | |
| Geekbench Single | 2729 | 923 | |
| Geekbench Multi | 8430 | 2249 | |
| Display | 6.8" OLED | 6.7" IPS LCD | |
| Resolution | 1280x2772 | 1600x720 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7410 mAh | 6500 mAh | |
| Charging | 100W | 44W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB / 1TB | 256GB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 3200 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | — | 164.2×75.4×8.4 mm | |
| Weight | 219 g | 207 g | |
| Price | $350 | $200 |
Redmi K80 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Front: 20MP
Vivo Y31s 5G
- Main: 50MP f/f/1.8
- Front: 32MP
Redmi K80 Ultra
- 6.8" OLED
- Resolution: 1280x2772
- Refresh rate: 144 Hz
Vivo Y31s 5G
- 6.7" IPS LCD
- Resolution: 1600x720
- Refresh rate: 120 Hz
Redmi K80 Ultra
- 7410 mAh
- Wired: 100W
- No wireless charging
Vivo Y31s 5G
- 6500 mAh
- Wired: 44W
- No wireless charging
We compared Redmi K80 Ultra and Vivo Y31s 5G, covering their specs and all relevant benchmarks.
Redmi K80 Ultra leads Vivo Y31s 5G by 412.8% in our overall performance rating.
Price difference: $150. Vivo Y31s 5G is cheaper by $150.
performance
In the "performance" category, the Redmi K80 Ultra significantly outperforms the Vivo Y31s 5G (61/100 vs 0/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Vivo Y31s 5G and the Redmi K80 Ultra are nearly equal (34/100 vs 32/100).
battery
In the "battery" category, the Redmi K80 Ultra notably outperforms the Vivo Y31s 5G (72/100 vs 54/100).
design
In the "design" category, the Vivo Y31s 5G notably outperforms the Redmi K80 Ultra (41/100 vs 26/100).
value for money
In the "value for money" category, the Vivo Y31s 5G is a bit better (96/100 vs 86/100).
Which is better: the Redmi K80 Ultra or the Vivo Y31s 5G?
The Redmi K80 Ultra significantly outperforms the Vivo Y31s 5G by 24 points (60/100 vs 36/100).
What is the rating of the Redmi K80 Ultra and the Vivo Y31s 5G?
The Redmi K80 Ultra has a MobileRank rating of 60/100, the Vivo Y31s 5G — 36/100.
Which is more powerful: the Redmi K80 Ultra or the Vivo Y31s 5G?
The Redmi K80 Ultra leads on performance (61/100 vs 0/100).
Should you choose the Redmi K80 Ultra over the Vivo Y31s 5G?
The Redmi K80 Ultra is a better fit for active users, budget-conscious buyers. The Vivo Y31s 5G is a better fit for budget-conscious buyers.