OPPO A77s vs vivo Y21t

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

OPPO A77sOPPO A77sSnapdragon 680 4GChange
vivo Y21tSnapdragon 680 4GChange

Key differences

  1. Screen: Up to 90 Hz on the A77s, 60 Hz on the Y21t.
  2. Versions: owners have shared the A77s as 8GB | 128GB, the Y21t as 4GB | 128GB.
  3. Software: Android 14 on the A77s, Android 13 on the Y21t (newest seen).

The same on both: the Snapdragon 680 4G chip and Widevine L1.

Chipset

Chipset
Snapdragon 680 4GSnapdragon 680 4G
Process
6 nm6 nm
CPU
4× 2.40 GHz Kryo 265 Gold
4× 1.90 GHz Kryo 265 Silver4× 2.40 GHz Kryo 265 Gold
4× 1.90 GHz Kryo 265 Silver
Top CPU speed
2.40 GHz2.40 GHz
CPU cores
88
GPU
Adreno 610Adreno 610

Memory

Versions seen
8GB | 128GB4GB | 128GB
RAM type
LPDDR4XLPDDR4X

Display

Size
6.5 in6.5 in
Resolution
720 × 1612720 × 1600
Pixel density
271 ppi269 ppi
Refresh rates
90 Hzalso 6060 Hz

Battery

Capacity
5,000 mAh5,000 mAh

Cameras

Back camera
12.5 MP4080 × 3072 · f/1.8 · 4.05 mm12.5 MP4080 × 3072 · f/1.8 · 4.05 mm
Front camera
8 MP3264 × 2448 · f/2 · 2.75 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
NoNo
Bluetooth LE Audio
NoNo
NFC
NoNo
UWB
NoNo
USB host
YesYes

Software

Android
Android 14Android 13
Released with
Android 12Android 11
Widevine DRM
L1L1

Sensors

Sensors
22 sensors30 sensors
A77s 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