Oppo A15 vs Samsung Galaxy A21

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

Oppo A15Oppo A15Helio P35Change
Samsung Galaxy A21Helio P35Change

Key differences

  1. Battery: 4,230 mAh on the Oppo A15, 3,900 mAh on the Galaxy A21.
  2. Main camera: 13.1 MP on the Oppo A15, 16.2 MP on the Galaxy A21.

The same on both: the Helio P35 chip, a 60 Hz screen, 3GB | 32GB versions and Android 10.

Chipset

Chipset
Helio P35Helio P35
Process
12 nm12 nm
CPU
4× 2.30 GHz Cortex-A53
4× 1.80 GHz Cortex-A534× 2.30 GHz Cortex-A53
4× 1.80 GHz Cortex-A53
Top CPU speed
2.30 GHz2.30 GHz
CPU cores
88
GPU
PowerVR Rogue GE8320PowerVR Rogue GE8320

Memory

Versions seen
3GB | 32GB3GB | 32GB
RAM type
LPDDR4XLPDDR4X

Display

Size
6.5 in6.5 in
Resolution
720 × 1600720 × 1600
Pixel density
269 ppi269 ppi
Refresh rates
60 Hz60 Hz

Battery

Capacity
4,230 mAh3,900 mAh

Cameras

Back camera
13.1 MP4208 × 3120 · f/2.2 · 3.37 mm16.2 MP4640 × 3488 · f/1.8 · 4.05 mm
Front camera
5 MP2592 × 1944 · f/2.4 · 2.28 mm13.1 MP4208 × 3120 · f/2 · 3.76 mm

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

Connectivity

NFC
NoYes
UWB
NoNo
USB host
YesYes

Software

Android
Android 10Android 10
Released with
Android 10Android 10
Widevine DRM
L3L1

Sensors

Sensors
23 sensors26 sensors
Oppo A15 full specs Galaxy A21 full specs

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