vivo Y51a vs Xiaomi Poco X3 Pro

Phones Images

PHONES
Phone Names	vivo Y51a	Xiaomi Poco X3 Pro

Network
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G bands	HSDPA 850 / 900 / 2100	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands	1, 3, 5, 8, 40	1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41 - International
Speed	HSPA, LTE	HSPA, LTE
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE
	-	1, 2, 3, 5, 8, 38, 40, 41 - India

Launch
Announced	2021, January 08	2021, March 22
Status	Available. Released 2021, January 23	Available. Released 2021, March 24

Body
Build	-	Glass front (Gorilla Glass 6), plastic back
Dimensions	163.9 x 75.3 x 8.4 mm (6.45 x 2.96 x 0.33 in)	165.3 x 76.8 x 9.4 mm (6.51 x 3.02 x 0.37 in)
SIM	Nano-SIM + Nano-SIM	Nano-SIM + Nano-SIM
Weight	188 g (6.63 oz)	215 g (7.58 oz)
	-	IP53, dust and splash resistant

Display
Protection	-	Corning Gorilla Glass 6
Resolution	1080 x 2408 pixels, 20:9 ratio (~401 ppi density)	1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Size	6.58 inches, 104.3 cm2 (~84.5% screen-to-body ratio)	6.67 inches, 107.4 cm2 (~84.6% screen-to-body ratio)
Type	IPS LCD	IPS LCD, 120Hz, 2404Hz PWM, HDR10, 450 nits (typ)

Platform
CPU	Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)	Octa-core (1x2.96 GHz Kryo 485 Gold & 3x2.42 GHz Kryo 485 Gold & 4x1.78 GHz Kryo 485 Silver)
Chipset	Qualcomm SM6115 Snapdragon 662 (11 nm)	Qualcomm Snapdragon 860 (7 nm)
GPU	Adreno 610	Adreno 640
OS	Android 11, upgradable to Android 12, Funtouch 12	Android 11, upgradable to Android 12, MIUI 13 for POCO

Memory
Card slot	microSDXC (dedicated slot)	microSDXC (uses shared SIM slot)
Internal	128GB 6GB RAM, 128GB 8GB RAM	128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
	-	UFS 3.1

Main Camera
Features	LED flash, HDR, panorama	Dual-LED flash, HDR, panorama
Quad	-	48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide), 1.0µm 2 MP (macro) Auxiliary lens
Single	-	20 MP, f/2.2, (wide), 1/3.4", 0.8µm
Triple	48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 120˚, (ultrawide), 1/4.0", 1.12µm 2 MP (macro)	-
Video	4K@30fps, 1080p@30fps, gyro-EIS	4K@30fps, 1080p@30/60/120/240fps, 1080p@960fps, gyro-EIS

Selfie camera
Features	HDR	HDR, panorama
Single	16 MP, f/2.0, (wide), 1/3.06" 1.0µm	20 MP, f/2.2, (wide), 1/3.4", 0.8µm
Video	1080p@30fps	1080p@30fps

Sound
3.5mm jack	Yes	Yes
35mm jack	Yes	Yes
Loudspeaker	Yes	Yes, with stereo speakers
	-	24-bit/192kHz audio

Comms
Bluetooth	5.0, A2DP, LE	5.0, A2DP, LE
Infrared port	-	Yes
NFC	No	Yes (market/region dependent)
Positioning	GPS, GLONASS, GALILEO, BDS	GPS, GLONASS, GALILEO, BDS
Radio	FM radio	FM radio, recording
USB	USB Type-C 2.0, OTG	USB Type-C 2.0, OTG
WLAN	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

Features
Sensors	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass

Battery
Charging	18W wired, 70% in 67 min	33W wired, 59% in 30 min, 100% in 59 min
Type	5000 mAh	Li-Po 5160 mAh

Misc
Colors	Titanium Sapphire, Crystal Symphony	Phantom Black, Frost Blue, Metal Bronze
Models	V2031	M2102J20SG, M2102J20SI
Price	About 200 EUR	$ 128.04 / £ 249.99
SAR	0.87 W/kg (head)     0.39 W/kg (body)	0.99 W/kg (head)     0.67 W/kg (body)
SAR EU	-	0.57 W/kg (head)     0.90 W/kg (body)

Tests
Battery life	-	Endurance rating 112h
Camera	-	Photo / Video
Display	-	Contrast ratio: 1401:1 (nominal)
Loudspeaker	-	-26.1 LUFS (Good)
Performance	-	AnTuTu: 453223 (v8) GeekBench: 2574 (v5.1) GFXBench: 38fps (ES 3.1 onscreen)

OUR TESTS
Battery (old)	-	Endurance rating 112h
Camera	-	Photo / Video
Display	-	Contrast ratio: 1401:1 (nominal)
Loudspeaker	-	-26.1 LUFS (Good)
Performance	-	AnTuTu: 453223 (v8) GeekBench: 2574 (v5.1) GFXBench: 38fps (ES 3.1 onscreen)