Category Breakdown
Oppo A57s
Xiaomi Redmi Note 9 4G
Performance
62.564.8
Camera
44.344.9
Display
70.570.5
Battery
63.063.5
Build
77.877.8
Overall
61.162.0
Summary
- The Oppo A57s features a 6.56-inch IPS LCD display with a resolution of 720 x 1612 pixels, while the Xiaomi Redmi Note 9 4G has a slightly larger 6.53-inch IPS LCD with a higher resolution of 1080 x 2340 pixels, resulting in better pixel density.
- In terms of performance, the A57s is powered by the Mediatek Helio G35 chipset, whereas the Redmi Note 9 4G utilizes the Qualcomm Snapdragon 662, offering a more efficient processing capability.
- The A57s has a dual rear camera setup with a 50 MP main sensor, compared to the Redmi Note 9 4G's 48 MP main and additional ultrawide sensor, providing more versatility.
- Battery capacity is another differentiator, with the A57s at 5000 mAh and the Redmi Note 9 4G at 6000 mAh, giving the latter a longer potential usage time.
- Both devices run Android, with the A57s on ColorOS 12.1 and the Redmi Note 9 4G on MIUI 14, offering different software experiences.
- Build quality is comparable, with the A57s using Panda Glass and the Redmi Note 9 4G featuring Gorilla Glass 3 for added durability.
Side-by-side Specification Comparison
Oppo A57s
Xiaomi Redmi Note 9 4G
General
Release Date
2022, August 31
2020, November 26
Announced
2022, August 31
2020, November 26
Description
N/A
N/A
Display
Size
6.56"
6.53"
Type
IPS LCD, 480 nits (typ), 600 nits (HBM)
IPS LCD, 400 nits (typ)
Resolution
720 x 1612 pixels, 20:9 ratio (~269 ppi density)
1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
PPI
720
1080
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
Panda Glass
Corning Gorilla Glass 3
Performance
Chipset
Mediatek MT6765G Helio G35 (12 nm)
Qualcomm SM6115 Snapdragon 662 (11 nm)
CPU
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU
PowerVR GE8320
Adreno 610
Memory
64GB 4GB RAM, 128GB 4GB RAM
128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC
microSDXC (dedicated slot)
Camera
Main Camera
50 MP
48 MP
Main Camera Details
50 MP, f/1.8, 27mm (wide), PDAF2 MP, f/2.4, (depth)
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm2 MP, f/2.4, (depth)
Front Camera
8 MP
8 MP
Front Camera Details
8 MP, f/2.0, 26mm (wide)
8 MP, f/2.0, 27mm (wide), 1/4.0", 1.12µm
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
5000 mAh
6000 mAh
Battery Details
Li-Po 5000 mAh
Li-Po 6000 mAh
Charging Details
33W wired, 100% in 69 min
18W wired2.5W reverse wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
163.8 x 75 x 8 mm (6.45 x 2.95 x 0.31 in)
162.3 x 77.3 x 9.6 mm (6.39 x 3.04 x 0.38 in)
Weight
187 g
198 g
Materials
Glass front (Panda Glass), plastic frame, plastic back
Glass front (Gorilla Glass 3), plastic frame, plastic back
Water Resistance
N/A
N/A
Colors
Starry Black, Sky Blue
Gray, Green, Blue, Orange
Foldable
✗
✗
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / CDMA / HSPA / LTE
Network Speed
HSPA, LTE
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.3, A2DP, LE, aptX HD
4.2, A2DP
NFC
✓
✗
USB
USB Type-C 2.0, OTG
USB Type-C 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS, GALILEO, QZSS
GPS, GLONASS, GALILEO, BDS
Software
Operating System
Android 12, ColorOS 12.1
Android 10, upgradable to Android 12, MIUI 14
OS Version
Android 12, ColorOS 12.1
Android 10, upgradable to Android 12, MIUI 14
Security
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (side-mounted), accelerometer, proximity, compass
Fingerprint (side-mounted), accelerometer, proximity, compass
Audio
Stereo Speakers
✓
✓
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
Audio Jack
Yes
Yes

