Redmi K90 Ultra vs Vivo S16

The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo S16 (2022) runs on the Qualcomm Snapdragon 870 5G. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 59/100 (a 14-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4600); the main camera is 50 MP vs 64 MP; the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 1,010,069); the Vivo S16 is noticeably lighter (182g vs 227g).

The Redmi K90 Ultra is noticeably better than the Vivo S16 — the overall rating gap is 14 points.
Profile comparison
Category scores
Redmi K90 Ultra
Performance 92
Display 94
Camera 37
Battery 78
Portability 40
Value for money
Vivo S16
Performance 61
Display 79
Camera 51
Battery 44
Portability 76
Value for money
What makes Redmi K90 Ultra better?
  • Higher AnTuTu: 3119308 vs 1010069
  • Better Geekbench Single: 3041 vs 1298
  • Better Geekbench Multi: 9494 vs 3520
  • Bigger battery: 8550 vs 4600 mAh
  • Faster charging: 100W vs 66W
  • Higher refresh rate: 165Hz vs 120Hz

  • Higher performance (92/100 vs 61/100)
  • Longer battery life (78/100 vs 44/100)
  • Better display (94/100 vs 79/100)
What makes Vivo S16 better?
  • Better main camera: 64MP vs 50MP
  • Lighter: 182g vs 227g

  • Better camera (51/100 vs 37/100)
  • Better portability (76/100 vs 40/100)
Comparison verdict

Comparing the Redmi K90 Ultra vs the Vivo S16, the Redmi K90 Ultra scores 14 points higher (73/100 vs 59/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 61/100). In the "camera" category, the Vivo S16 leads (51/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 44/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo S16 (92/100 vs 61/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo S16 (94/100 vs 79/100). In the "camera" category, the Vivo S16 is a bit better (51/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo S16 (78/100 vs 44/100). In the "portability" category, the Vivo S16 significantly outperforms the Redmi K90 Ultra (76/100 vs 40/100).

Redmi K90 Ultra: The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.
Vivo S16: The Vivo S16 is a better fit for active users.
Specs comparison
Specification Redmi K90 Ultra Vivo S16
Processor Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 870 5G
AnTuTu 3119308 1010069
Geekbench Single 3041 1298
Geekbench Multi 9494 3520
Display 6.8" AMOLED 6.8" AMOLED
Resolution 1280x2772 1080x2400
Refresh rate 165 Hz 120 Hz
Battery 8550 mAh 4600 mAh
Charging 100W 66W
Main camera 50 MP 64 MP
Ultrawide 8 MP 8 MP
Front camera 20 MP 50 MP
RAM 12GB / 16GB 8GB / 12GB
Storage 256GB / 512GB 128GB / 256GB / 512GB
OS Android 16 Android 13, Origin OS 3
Brightness (peak) 3500 nits
NFC yes yes
Protection IP68/IP69
Dimensions 162.9×77.9×8.2 mm 164.1×74.8×7.4 mm
Weight 227 g 182 g
Price $420
Camera comparison
Redmi K90 Ultra
  • Main: 50MP f/1.7
  • Ultrawide: 8MP
  • Front: 20MP
37
camera
Vivo S16
  • Main: 64MP f/f/1.9
  • Ultrawide: 8MP
  • Front: 50MP
51
camera
Display comparison
Redmi K90 Ultra
  • 6.8" AMOLED
  • Resolution: 1280x2772
  • Refresh rate: 165 Hz
94
display
Vivo S16
  • 6.8" AMOLED
  • Resolution: 1080x2400
  • Refresh rate: 120 Hz
79
display
Battery and charging
Redmi K90 Ultra
  • 8550 mAh
  • Wired: 100W
  • No wireless charging
78
battery
Vivo S16
  • 4600 mAh
  • Wired: 66W
  • No wireless charging
44
battery
Overall performance score

We compared Redmi K90 Ultra and Vivo S16, covering their specs and all relevant benchmarks.

Redmi K90 Ultra Qualcomm Snapdragon 8 Elite
73/100
3119308 AnTuTu
Vivo S16 Qualcomm Snapdragon 870 5G
59/100 -208.8%
1010069 AnTuTu

Redmi K90 Ultra leads Vivo S16 by 208.8% in our overall performance rating.

Benchmarks
Price and availability
Redmi K90 Ultra
$420
Vivo S16
Price unknown
Detailed category analysis
performance

In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo S16 (92/100 vs 61/100).

display

In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo S16 (94/100 vs 79/100).

camera

In the "camera" category, the Vivo S16 is a bit better (51/100 vs 37/100).

battery

In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo S16 (78/100 vs 44/100).

portability

In the "portability" category, the Vivo S16 significantly outperforms the Redmi K90 Ultra (76/100 vs 40/100).

Frequently asked questions
Which is better: the Redmi K90 Ultra or the Vivo S16?

The Redmi K90 Ultra is noticeably better than the Vivo S16 — the overall rating gap is 14 points.

What is the rating of the Redmi K90 Ultra and the Vivo S16?

The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo S16 — 59/100.

Which has the better camera: the Redmi K90 Ultra or the Vivo S16?

The Vivo S16 leads on camera score (51/100 vs 37/100).

Which is more powerful: the Redmi K90 Ultra or the Vivo S16?

The Redmi K90 Ultra leads on performance (92/100 vs 61/100).

Should you choose the Redmi K90 Ultra over the Vivo S16?

The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life. The Vivo S16 is a better fit for active users.