Redmi 3S vs Vivo iQOO 15
The Redmi 3S (2016) runs on the Qualcomm Snapdragon 430, while the Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $120 and $599. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 21/100 (a 65-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 4100); the main camera is 13 MP vs 50 MP; the Vivo iQOO 15 is faster in AnTuTu (3,740,528 vs 180,440); the Vivo iQOO 15 has NFC for contactless payments, the Redmi 3S doesn't; the Redmi 3S is noticeably lighter (144g vs 215g).
Redmi 3S
Vivo iQOO 15
- Lighter: 144g vs 215g
- Cheaper at launch: $120 vs $599
- Better portability (78/100 vs 48/100)
- Higher AnTuTu: 3740528 vs 180440
- Better Geekbench Single: 3041 vs 205
- Better Geekbench Multi: 9494 vs 827
- Bigger battery: 7000 vs 4100 mAh
- Better main camera: 50MP vs 13MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (94/100 vs 11/100)
- Better camera (78/100 vs 10/100)
- Longer battery life (85/100 vs 35/100)
- Better display (99/100 vs 32/100)
Comparing the Redmi 3S vs the Vivo iQOO 15, the Vivo iQOO 15 scores 65 points higher (86/100 vs 21/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 11/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 10/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 35/100). Value score: Redmi 3S — 24/100, Vivo iQOO 15 — 84/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo iQOO 15 significantly outperforms the Redmi 3S (94/100 vs 11/100). In the "display" category, the Vivo iQOO 15 significantly outperforms the Redmi 3S (99/100 vs 32/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Redmi 3S (78/100 vs 10/100). In the "battery" category, the Vivo iQOO 15 significantly outperforms the Redmi 3S (85/100 vs 35/100). In the "portability" category, the Redmi 3S significantly outperforms the Vivo iQOO 15 (78/100 vs 48/100).
| Specification | Redmi 3S | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 430 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 180440 | 3740528 | |
| Geekbench Single | 205 | 3041 | |
| Geekbench Multi | 827 | 9494 | |
| Display | 5.0" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | — | 1440x3168 | |
| Refresh rate | 60 Hz | 144 Hz | |
| Battery | 4100 mAh | 7000 mAh | |
| Charging | — | 100W | |
| Wireless charging | — | 40W | |
| Main camera | 13 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 5 MP | 32 MP | |
| RAM | 2GB / 3GB | 12GB / 16GB | |
| Storage | 16GB / 32GB | 256GB / 512GB / 1TB | |
| OS | — | Android 16 | |
| Brightness (peak) | — | 6000 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 139.3×69.6×8.5 mm | 163.7×76.8×8.1 mm | |
| Weight | 144 g | 215 g | |
| Launch price | $120 | $599 |
Redmi 3S
- Main: 13MP
- Front: 5MP
Vivo iQOO 15
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Redmi 3S
- 5.0" IPS LCD
- Refresh rate: 60 Hz
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Redmi 3S
- 4100 mAh
- Wireless charging: no data
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
We compared Redmi 3S and Vivo iQOO 15, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Redmi 3S by 95.2% in our overall performance rating.
Launch price difference: $479. Redmi 3S was $479 cheaper at launch.
performance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Redmi 3S (94/100 vs 11/100).
display
In the "display" category, the Vivo iQOO 15 significantly outperforms the Redmi 3S (99/100 vs 32/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Redmi 3S (78/100 vs 10/100).
battery
In the "battery" category, the Vivo iQOO 15 significantly outperforms the Redmi 3S (85/100 vs 35/100).
portability
In the "portability" category, the Redmi 3S significantly outperforms the Vivo iQOO 15 (78/100 vs 48/100).
Which is better: the Redmi 3S or the Vivo iQOO 15?
The Vivo iQOO 15 significantly outperforms the Redmi 3S by 65 points (86/100 vs 21/100).
What is the rating of the Redmi 3S and the Vivo iQOO 15?
The Redmi 3S has a MobileRank rating of 21/100, the Vivo iQOO 15 — 86/100.
Which has the better camera: the Redmi 3S or the Vivo iQOO 15?
The Vivo iQOO 15 leads on camera score (78/100 vs 10/100).
Which is more powerful: the Redmi 3S or the Vivo iQOO 15?
The Vivo iQOO 15 leads on performance (94/100 vs 11/100).
Should you choose the Redmi 3S over the Vivo iQOO 15?
The Redmi 3S is a better fit for everyday use. The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.