Xiaomi Poco X3 Pro vs Nothing Phone (3a) 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.

6.4
Nothing Phone (3a)
Xiaomi Poco X3 Pro Nothing Phone (3a)
Released · March 2021
Released · Mar 11, 2025
6.7-inch · 2400x1080px
6.8-inch · 2392x1080px
Quad camera
Triple camera
6GB · 128GB
8GB · 128GB
5160 mAh
5000 mAh
Check prices Check prices
Check Accessories Check Accessories

Availability

Officially announced
Mar 22, 2021 Mar 04, 2025
Prices (MSRP)
6GB/128GB - €249 8GB/128GB - €330
12GB/256GB - $379 | €379

Design

Dimensions
6.51 x 3.02 x 0.37 inches
165.3 x 76.8 x 9.4 mm
6.44 x 3.05 x 0.33 inches
163.52 x 77.5 x 8.35 mm
Weight
7.58 oz / 215.0 g 7.09 oz / 201.0 g
Materials
Back: Glass
Frame: Plastic
Resistance
Splash, Dust; IP53 Water, Dust; IP64
Biometrics
2D Face unlock, Fingerprint (touch) Optical in-screen fingerprint
Keys
Left: Volume control, Lock/Unlock key Left: Volume control; Right: Lock/Unlock key, Other
Colors
Phantom black, Frost blue, Metal bronze Black, White, Blue

Display

Size
6.7-inch, 84.68% screen-to-body 6.8-inch, 87.32% screen-to-body
Type
IPS LCD, 120Hz, HDR OLED, 120Hz, 3000 nits
Resolution
2400x1080px, 20:9 ratio, 395 PPI 2392x1080px, 20:9 ratio, 388 PPI
Protection
Corning Gorilla Glass 6 Panda Glass
PhoneArena Display Test
Bright Max (20% APL)
Untested 1184 (Average)
Bright Min
Untested 2.2 (Average)

Hardware

System chip
Snapdragon 860 SM8150-AC (7 nm) Snapdragon 7s Gen 3 SM7635 (4 nm)
Processor
Octa-core
2960 MHz
Kryo 485
Octa-core
1x2.5GHz Cortex-A720
3x2.4​GHz Cortex-A720
4x1.8​GHz Cortex-A520
GPU
Adreno 640 Adreno 710
Memory
6GB (LPDDR4)/128GB (UFS 3.1)
8GB/256GB
8GB/128GB
12GB/256GB
Storage expansion
microSDXC up to 1024 GB not expandable
OS
Android (11) Android (15)
PhoneArena Performance Test
GeekBench 6 Single
Untested 1174
GeekBench 6 Multi
Untested 3337
3D Mark High
Untested 1060
3D Mark Low
Untested 1055

Battery

Type
5160 mAh 5000 mAh
Charging
Fast charging
Reverse wired charging
Charge speed
Wired: 33.0W Wired: 50.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
7h 38min
Browsing
17h 4min
Video
11h 6min
Gaming
11h 21min

Camera

Rear
Quad camera Triple camera
Main camera
48 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/2"
Pixel size: 0.8 μm
50 MP (OIS, PDAF)
Aperture size: F1.9
Sensor size: 1/1.57"
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
8 MP (Ultra-wide)
Third camera
2 MP (Macro)
Aperture size: F2.4
50 MP (Telephoto)
Optical zoom: 2.0x
Aperture size: F2.0
Sensor size: 1/2.74"
Fourth camera
2 MP (Depth information)
Aperture size: F2.4
Flash
LED LED
Video recording
4K UHD (30 fps), 1080p (60 fps), 720p (30 fps) 4K UHD (30 fps), 1080p (120 fps)
Front
32 MP
PhoneArena Camera Tests
N/A
Overall
N/A
Photo
N/A
Video
126
Overall
135
Photo
117
Video

Connectivity & Features

Bluetooth
5.0 5.4
WLAN
dual-band
MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
Wi-Fi 6
Multiple antennas, MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax
USB
Type-C Type-C
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
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, Infrared NFC

Multimedia

Headphones
3.5mm jack No 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Multiple speakers

Cellular

5G Bands
n1, n2, n3, n5, n7, n8, n12, n20, n28, n38, n40, n41, n48, n66, n77, n78, SA, NSA, Sub-6
LTE Bands
1, 2, 3, 4, 5, 7, 8, 20, 28 1, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28, 66
TDD Bands
38, 40, 41 38, 39, 40, 41, 42
3G Bands
1, 2, 4, 5, 8 1, 4, 5, 6, 8, 19
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM Dual Nano SIM

Regulatory Approval

FCC approval
Date approved: Feb 01, 2021
FCC ID value: 2AFZZJ20SG
Measured SAR
Head: 0.81 W/kg
Body: 0.67 W/kg
Simultaneous Transmission: 1.57 W/kg
Wireless Router: 0.78 W/kg

Alternative variants

with 256GB storage
Memory 8GB/256GB
Prices (MSRP) €299
With 12GB RAM and 256GB internal storage
Memory 12GB/256GB
FCC OKs Cingular\'s purchase of AT&T Wireless