vivo S1 vs Y21t

Specs compared side by side, measured on real phones shared by owners with the Device Info app.

vivo S1vivo S1Helio P65Change
vivo Y21tSnapdragon 680 4GChange

Key differences

  1. Chipset: the S1 uses the Helio P65 (12 nm), the Y21t the Snapdragon 680 4G (6 nm). The S1's fastest core runs at 2.00 GHz, the Y21t's at 2.40 GHz.
  2. Screen: 6.4 inches on the S1, 6.5 inches on the Y21t. Up to 62 Hz on the S1, 60 Hz on the Y21t.
  3. Battery: 4,500 mAh on the S1, 5,000 mAh on the Y21t.
  4. Main camera: 15.9 MP on the S1, 12.5 MP on the Y21t.

Chipset

Chipset
Helio P65Snapdragon 680 4G
Process
12 nm6 nm
CPU
2× 2.00 GHz Cortex-A75
6× 1.70 GHz Cortex-A554× 2.40 GHz Kryo 265 Gold
4× 1.90 GHz Kryo 265 Silver
Top CPU speed
2.00 GHz2.40 GHz
CPU cores
88
GPU
Mali-G52 MC2Adreno 610

Memory

Versions seen
6GB | 128GB4GB | 128GB
RAM type
LPDDR4XLPDDR4X

Display

Size
6.4 in6.5 in
Resolution
1080 × 2340720 × 1600
Pixel density
404 ppi269 ppi
Refresh rates
62 Hz60 Hz

Battery

Capacity
4,500 mAh5,000 mAh

Cameras

Back camera
15.9 MP4608 × 3456 · f/1.78 · 4.05 mm12.5 MP4080 × 3072 · f/1.8 · 4.05 mm
Front camera
15.9 MP4608 × 3456 · f/2 · 3.84 mm8 MP3264 × 2448 · f/1.8 · 2.54 mm

Megapixels are what Android reports to apps. Many phones combine pixels by default, so the advertised megapixels can be higher.

Connectivity

6 GHz Wi-Fi
—No
Bluetooth LE Audio
—No
NFC
NoNo
UWB
NoNo
USB host
YesYes

Software

Android
Android 9Android 13
Released with
Android 9Android 11
Widevine DRM
L3L1

Sensors

Sensors
27 sensors30 sensors
S1 full specs Y21t full specs

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From phones shared with the Device Info app · updated November 2026 Hardware specs only. No personal data. Privacy