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InnoReviews

Redmi K70 Ultra vs Vivo S2

WINNER
Redmi K70 Ultra
76.7Inno Score
VS
Vivo S2
48.5Inno Score
100Performance28.9
75.1Display65.5
43.4Camera34.1
71.8Battery70.9
86.7Features57.3
6 spec wins — Redmi K70 Ultra7 spec wins — Vivo S2

InnoReviews verdict

Redmi K70 Ultra wins this phone face-off, 76.7 to 48.5, pulling ahead mainly in performance (+71) and features (+29). Vivo S2 still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the Redmi K70 Ultra

  • Stronger performance score: 100 vs 29
  • Stronger display score: 75 vs 66
  • Stronger camera score: 43 vs 34
  • Stronger features score: 87 vs 57
  • 200% higher RAM (max): 24 GB vs 8 GB

Reasons to pick the Vivo S2

  • 60% higher Front camera: 32 MP vs 20 MP
  • 28% higher capacity: 7,050 mAh vs 5,500 mAh

Display

Display comparison: Redmi K70 Ultra versus Vivo S2
SpecRedmi K70 UltraVivo S2
Screen size6.67 ″6.83 ″+2%
Panel typeOLED3D Curved AMOLED
Resolution1220x27121260x2800
Pixel density446 ppi449 ppi+1%
Refresh rate144 Hz+20%120 Hz
Peak brightness4,000 nits+33%3,000 nits
Screen-to-body89.1 %91.4 %+3%

Performance

Performance comparison: Redmi K70 Ultra versus Vivo S2
SpecRedmi K70 UltraVivo S2
ChipsetMediaTek Dimensity 9300+MediaTek Dimensity 7360-Turbo
RAM (max)24 GB+200%8 GB
Storage options256/512GB/1TB128/256GB
Storage typeUFS 4.0UFS 3.1

Camera

Camera comparison: Redmi K70 Ultra versus Vivo S2
SpecRedmi K70 UltraVivo S2
Main camera50 MP50 MP
Main aperturef/1.7f/1.8
Ultra-wide8 MP—
Max video8K@30fps—
Front camera20 MP32 MP+60%
OISYesNo

Battery

Battery comparison: Redmi K70 Ultra versus Vivo S2
SpecRedmi K70 UltraVivo S2
Capacity5,500 mAh7,050 mAh+28%
Wired charging120 W+173%44 W
Wireless charging0 W—

Design

Design comparison: Redmi K70 Ultra versus Vivo S2
SpecRedmi K70 UltraVivo S2
Weight211 g197 g+7%
Thickness8.4 mm8 mm+5%
IP ratingIP68IP68/IP69
Frame materialAluminumPlastic

Connectivity

Connectivity comparison: Redmi K70 Ultra versus Vivo S2
SpecRedmi K70 UltraVivo S2
5GYesYes
Wi-FiWi-Fi 7Wi-Fi 5
Bluetooth5.45.4
NFCYesNo
USBUSB-CUSB-C 2.0
eSIMNoNo

Software

Software comparison: Redmi K70 Ultra versus Vivo S2
SpecRedmi K70 UltraVivo S2
OS at launchAndroid 14 (HyperOS)Android 16 (OriginOS 6)
OS update pledge—3 years

Audio

Audio comparison: Redmi K70 Ultra versus Vivo S2
SpecRedmi K70 UltraVivo S2
Stereo speakersYesYes
3.5mm jackNoNo

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