Redmi K100 vs Vivo Y31s 5G
The Redmi K100 (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo Y31s 5G (2026) runs on the Qualcomm Snapdragon 4 Gen 2. By overall MobileRank rating, the Redmi K100 leads — 73/100 vs 47/100 (a 26-point difference). Key differences: the Redmi K100 has the bigger battery (10000 mAh vs 6500); the Redmi K100 is faster in AnTuTu (3,298,726 vs 568,395); the Redmi K100 has NFC for contactless payments, the Vivo Y31s 5G doesn't; the Vivo Y31s 5G is noticeably lighter (207g vs 234g).
Profile comparison
Category scores
Redmi K100
Vivo Y31s 5G
What makes Redmi K100 better?
- Higher AnTuTu: 3298726 vs 568395
- Better Geekbench Single: 3013 vs 915
- Better Geekbench Multi: 9287 vs 2115
- Bigger battery: 10000 vs 6500 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 46/100)
- Longer battery life (80/100 vs 58/100)
- Better display (94/100 vs 55/100)
What makes Vivo Y31s 5G better?
- Lighter: 207g vs 234g
- Better portability (50/100 vs 25/100)
Comparison verdict
Comparing the Redmi K100 vs the Vivo Y31s 5G, the Redmi K100 scores 26 points higher (73/100 vs 47/100). In the "performance" category, the Redmi K100 leads (92/100 vs 46/100). In the "battery" category, the Redmi K100 leads (80/100 vs 58/100). In the "performance" category, the Redmi K100 significantly outperforms the Vivo Y31s 5G (92/100 vs 46/100). In the "display" category, the Redmi K100 significantly outperforms the Vivo Y31s 5G (94/100 vs 55/100). In the "camera" category, both devices are on the same level — 37/100. In the "battery" category, the Redmi K100 notably outperforms the Vivo Y31s 5G (80/100 vs 58/100). In the "portability" category, the Vivo Y31s 5G notably outperforms the Redmi K100 (50/100 vs 25/100).
Specs comparison
| Specification | Redmi K100 | Vivo Y31s 5G | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 4 Gen 2 | |
| AnTuTu | 3298726 | 568395 | |
| Geekbench Single | 3013 | 915 | |
| Geekbench Multi | 9287 | 2115 | |
| Display | 6.8" AMOLED | 6.7" IPS LCD | |
| Resolution | 1280x2772 | 1600x720 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 10000 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 | 256GB | |
| OS | Android 17 | Android 16 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | — | 164.2×75.4×8.4 mm | |
| Weight | 234 g | 207 g | |
| Launch price | — | $200 |
Camera comparison
Redmi K100
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo Y31s 5G
- Main: 50MP f/1.8
- Front: 32MP
Display comparison
Redmi K100
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo Y31s 5G
- 6.7" IPS LCD
- Resolution: 1600x720
- Refresh rate: 120 Hz
Battery and charging
Redmi K100
- 10000 mAh
- Wired: 100W
- No wireless charging
Vivo Y31s 5G
- 6500 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Redmi K100 and Vivo Y31s 5G, covering their specs and all relevant benchmarks.
Redmi K100 leads Vivo Y31s 5G by 480.4% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Redmi K100
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K100 significantly outperforms the Vivo Y31s 5G (92/100 vs 46/100).
display
In the "display" category, the Redmi K100 significantly outperforms the Vivo Y31s 5G (94/100 vs 55/100).
camera
In the "camera" category, both devices are on the same level — 37/100.
battery
In the "battery" category, the Redmi K100 notably outperforms the Vivo Y31s 5G (80/100 vs 58/100).
portability
In the "portability" category, the Vivo Y31s 5G notably outperforms the Redmi K100 (50/100 vs 25/100).
Frequently asked questions
Which is better: the Redmi K100 or the Vivo Y31s 5G?
The Redmi K100 significantly outperforms the Vivo Y31s 5G by 26 points (73/100 vs 47/100).
What is the rating of the Redmi K100 and the Vivo Y31s 5G?
The Redmi K100 has a MobileRank rating of 73/100, the Vivo Y31s 5G — 47/100.
Which is more powerful: the Redmi K100 or the Vivo Y31s 5G?
The Redmi K100 leads on performance (92/100 vs 46/100).
Should you choose the Redmi K100 over the Vivo Y31s 5G?
The Redmi K100 is a better fit for gamers and power users, those who care about battery life.