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Vivo S50 vs Xiaomi Redmi K90

What S50 does better (7) and where Redmi K90 wins (10) — every spec side by side.

Vivo S50
Vivo · 2025S50
9.4Score
7 advantages≈ $390
vs
Xiaomi Redmi K90
Xiaomi · 2025Redmi K90
9.6Score
10 advantages≈ $380
Higher score
8.3Display9.4
8.5Performance9.5
9.4Camera9.1
9.2Battery9.5
8.9Features9.3
Dimensions

Size comparison

S50Redmi K90
74.3 × 157.57.675.3 × 157.58
S50Redmi K90Difference
Height157.5 mm157.5 mm=
Width74.3 mm75.3 mm−1 mm
Thickness7.6 mm8 mm−0.4 mm
Weight196 g206 g−10 g

Drawn to the same scale from the official dimensions (front and side).

Why is S50 better than Redmi K90?

  1. Selfie camera50 MP vs 20 MP2.5×
  2. 4K selfie videoYes · Redmi K90: No
  3. Optical zoom3× vs 2.5×+20%
  4. Pixel density459 ppi vs 419 ppi+10%
  5. Weight196 g vs 206 g+5%
  6. Resolution (width)1,260 px vs 1,156 px+9%
  7. Thickness7.6 mm vs 8 mm+5%

Why is Redmi K90 better than S50?

  1. Refresh rate120 Hz vs 560 Hz4.7×
  2. AnTuTu score1,794,400 vs 3,126,494+74%
  3. Geekbench 6 (multi-core)5,710 vs 9,442+65%
  4. Storage (max)512 GB vs 1,024 GB2×
  5. Battery capacity6,500 mAh vs 7,100 mAh+9%
  6. Wired charging90 W vs 100 W+11%
  7. CPU frequency3 GHz vs 4.32 GHz+44%
  8. Max video4K vs 8K
  9. Process4 nm vs 3 nm+33%
  10. Wi-Fi standardWi-Fi 6 vs Wi-Fi 7+17%
Specifications

Side by side

Vivo S50Vivo S50≈ $3909.4
Xiaomi Redmi K90Xiaomi Redmi K90≈ $3809.6
Design
Weight196 g206 g
Thickness7.6 mm8 mm
Height157.5 mm157.5 mm
Width74.3 mm75.3 mm
FrameAluminiumAluminium
BackGlass—
Ingress protectionIP68IP68
Water resistance (IPx)IPx8IPx8
Glass protection—Xiaomi Dragon Crystal Glass
ColoursBlack, Blue, White, PurpleBlack, White, Blue, Purple
Display
Screen size6.6″6.6″
PanelAMOLEDAMOLED
OLED panelYesYes
Resolution (width)1,260 px1,156 px
Resolution (height)2,750 px2,510 px
Pixel density459 ppi419 ppi
Refresh rate120 Hz560 Hz
Peak brightness—3,500 nits
Screen-to-body ratio90.7%89.8%
HDRYesYes
Performance
ChipsetQualcomm SM8635 Snapdragon 8s Gen 3Qualcomm SM8750-AB Snapdragon 8 Elite
Chip makerQualcommQualcomm
Process4 nm3 nm
CPU cores88
CPU frequency3 GHz4.32 GHz
GPUAdreno 735Adreno 830
AnTuTu score1,794,4003,126,494
Geekbench 6 (multi-core)5,7109,442
Memory
RAM16 GB16 GB
Storage (max)512 GB1,024 GB
Storage (base)256 GB256 GB
Storage typeUFS 4.1UFS 4.1
Memory card slotNoNo
Camera
Main camera50 MP50 MP
Main camera aperturef/1.9f/1.9
Main sensor size1/1.56"1/1.55"
Rear cameras33
Optical stabilisationYesYes
Ultra-wide cameraYesYes
Telephoto cameraYesYes
Optical zoom3×2.5×
Max video4K8K
4K video frame rate60 fps60 fps
Selfie camera50 MP20 MP
4K selfie videoYesNo
Battery
Battery capacity6,500 mAh7,100 mAh
Battery typeSi/CSi/C
Wired charging90 W100 W
Charged in 30 min48%—
Wireless chargingNoNo
Connectivity
5GYesYes
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 6Wi-Fi 7
Bluetooth5.45.4
NFCYesYes
USBUSB Type-C 2.0USB Type-C
USB version2—
Video outputYes—
Infrared portYesYes
Dual-band GPS—Yes
Satellite navigationGLONASS, GALILEO, BDS, QZSSGLONASS, GALILEO, BDS, QZSS, NavIC
Features
Stereo speakersYesYes
3.5 mm headphone jackNoNo
Fingerprint sensorUnder display, ultrasonicUnder display, ultrasonic
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compassFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Software
OS at launchAndroid 16Android 16
PlatformAndroidAndroid
InterfaceOriginOS 6HyperOS 3
To compare: 0up to 4 models
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