OPPO A78 vs Xiaomi Poco X8 Pro Max vs Samsung Galaxy A57 5G Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

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7.4
Xiaomi Poco X8 Pro Max
OPPO A78 Xiaomi Poco X8 Pro Max Samsung Galaxy A57 5G
Released · Jan 07, 2023
Released · Mar 17, 2026
Announced · Mar 25, 2026
6.6-inch · 1612x720px
6.8-inch · 2772x1280px
6.7-inch · 2340x1080px
Dual camera
Dual camera
Triple camera
4GB · 128GB
12GB · 256GB
8GB · 128GB
5000 mAh
8500 mAh
5000 mAh
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Availability

Officially announced
Mar 17, 2026 Mar 25, 2026
Prices (MSRP)
12GB/256GB - $469 8GB/128GB - $550

Design

Dimensions
6.45 x 2.96 x 0.31 inches
163.8 x 75.1 x 8 m
6.41 x 3.07 x 0.32 inches (~0.41 inches with camera bump)
162.9 x 77.9 x 8.2 mm (~10.30 mm with camera bump)
6.36 x 3.02 x 0.27 inches (~0.38 inches with camera bump)
161.5 x 76.8 x 6.9 (~9.7 mm with camera bump)
Weight
6.63 oz / 188.0 g 7.69 oz / 218.0 g 6.31 oz / 179.0 g
Materials
Back: Glass
Frame: Aluminum
Back: Glass (Corning Gorilla Glass Victus+)
Frame: Aluminum
Resistance
Splash, Dust; IP54 Water, Dust; IP68 Water, Dust; IP67
Biometrics
Fingerprint (touch) Ultrasonic in-screen fingerprint Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Glowing Black, Glowing Purple Awesome Navy, Awesome Grey, Awesome Icyblue, Awesome Lilac

Display

Size
6.6-inch, 83.93% screen-to-body 6.8-inch, 90.22% screen-to-body 6.7-inch, 87.64% screen-to-body
Type
IPS LCD, 90Hz, 600 nits AMOLED, 120Hz, 3500 nits Super AMOLED Plus, 120Hz, HDR, 1900 nits
Resolution
1612x720px, 20:9 ratio, 269 PPI 2772x1280px, 447 PPI 2340x1080px, 19.5:9 ratio, 385 PPI
Protection
Corning Gorilla Glass Victus+
PhoneArena Display Test
Bright Max (20% APL)
Untested 3362 (Excellent) Untested
Bright Min
Untested 1.9 (Good) Untested

Hardware

System chip
Mediatek Dimensity 700 (7 nm) MediaTek Dimensity 9500 (3 nm) Exynos 1680 (4 nm)
Processor
Octa-core
2x2.2GHz Cortex-A76
6x2.0G​Hz Cortex-A5
Octa-core
1x4.21GHz C1-Ultra
3x3.5GHz C1-Premium
4x2.7 GHz C1-Pro
Octa-core
1x 2.9 GHz Cortex-A720
4x 2.6 GHz Cortex-A720
3x 1.95 GHz Cortex-A520
GPU
Mali-G57 MC2 Mali G1-Ultra Samsung Xclipse 550
Memory
4GB/128GB 12GB/256GB
12GB/512GB
8GB (LPDDR5X)/128GB (UFS 3.1)
8GB/256GB
Storage expansion
microSDXC not expandable
OS
Android (14, 13, 12) Android (16) Android (16), up to 7 OS updates
PhoneArena Performance Test
GeekBench 6 Single
Untested 2636 Untested
GeekBench 6 Multi
Untested 8334 Untested
3D Mark High
Untested 4194 Untested
3D Mark Low
Untested 3416 Untested

Battery

Type
5000 mAh 8500 mAh, Si - Carbon 5000 mAh, Li - Ion
Charging
Fast charging
Charge speed
Wired: 33.0W Wired: 100.0W Wired: 45.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
10h 21min
Browsing
26h 6min
Video
15h 26min
Gaming
9h 55min
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested

Camera

Rear
Dual camera Dual camera Triple camera
Main camera
50 MP (PDAF)
Aperture size: F1.8
Focal length: 27 mm
50 MP (OIS, PDAF)
Aperture size: F1.5
50 MP (OIS, PDAF)
Aperture size: F1.8
Sensor size: 1/1.56"
Pixel size: 1.0 μm
Second camera
2 MP (Depth information) 8 MP (Ultra-wide)
Aperture size: F2.2
13 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/3.2"
Pixel size: 1.12 μm
Third camera
5 MP (Macro)
Aperture size: F2.4
Flash
LED LED LED
Video recording
Yes Yes 4K UHD (30 fps)
Front
8 MP 20 MP 12 MP
Video capture: 4K UHD (30 fps)

Connectivity & Features

Bluetooth
5.3 Yes 5.3
WLAN
Yes
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
Wi-Fi 6,Wi-Fi 7
Wi-Fi Direct, Hotspot
Wi-Fi 6
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax
USB
Type-C, USB 2.0 Type-C Type-C, USB 2.0
Sensors
Accelerometer, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T4
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, Cell ID, Wi-Fi positioning
Other
NFC NFC NFC

Multimedia

Headphones
3.5mm jack No 3.5mm jack No 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Multiple speakers Earpiece, Multiple speakers
Screen mirroring
Wireless screen share Wireless screen share
Additional microphone(s)
Noise cancellation Noise cancellation

Cellular

5G Bands
5G Ready 5G Ready n1, n3, n5, n7, n8, n20, n28, n66
LTE Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66
TDD Bands
38, 40, 41
3G Bands
1, 2, 4, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
Dual Nano SIM Nano SIM Dual Nano SIM + eSIM