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	Compare with Xiaomi Mi A1 (Mi 5X)	Compare with Asus Zenfone 4 Pro ZS551KL
Full Differences Change compare mode	Review Specs ALL VERSIONSGLOBAL - Global marketINDIA - IndiaRUSSIA - RussiaVIETNAM - VietnamHONG KONG - Hong KongINDONESIA - IndonesiaMI 5X (CHINA) - China	Preview Specs

Xiaomi Mi A1 (Mi 5X)

Asus Zenfone 4 Pro ZS551KL

Network
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE
2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network	HSDPA 850 / 900 / 1900 / 2100	HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G Network	1, 3, 5, 7, 8, 20, 38, 40	1, 2, 3, 4, 5, 7, 8, 17, 19, 20, 28, 38, 39, 40, 41 - Global, Taiwan
		1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 29, 30, 38, 39, 41 - US, Canada, Brazil
		1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 29, 30, 38, 39, 40, 41 - India
Speed	HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps	HSPA 42.2/5.76 Mbps, LTE (3CA) Cat12 600/150 or 100 Mbps

Launch
Announced	2017, September	2017, August
Status	Available. Released 2017, September	Available. Released 2017, October

Body
Dimensions	155.4 x 75.8 x 7.3 mm (6.12 x 2.98 x 0.29 in)	156.9 x 75.6 x 7.6 mm (6.18 x 2.98 x 0.30 in)
Weight	165 g (5.82 oz)	175 g (6.17 oz)
Build	Glass front (Gorilla Glass 3), aluminum back, aluminum frame	Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
SIM	Hybrid Dual SIM (Nano-SIM, dual stand-by)	Hybrid Dual SIM (Nano-SIM, dual stand-by)

Display
Type	IPS LCD	AMOLED
Size	5.5 inches, 82.6 cm2 (~70.1% screen-to-body ratio)	5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio)
Resolution	1080 x 1920 pixels, 16:9 ratio (~403 ppi density)	1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Protection	Corning Gorilla Glass 3	Corning Gorilla Glass 5

Platform
OS	Android 7.1.2 (Nougat), upgradable to Android 9.0 (Pie), Android One	Android 7.1.1 (Nougat), upgradable to Android 8 (Oreo), ZenUI 4
Chipset	Qualcomm MSM8953 Snapdragon 625 (14 nm)	Qualcomm MSM8998 Snapdragon 835 (10 nm)
CPU	Octa-core 2.0 GHz Cortex-A53	Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
GPU	Adreno 506	Adreno 540

Memory
Card slot	microSDXC (uses shared SIM slot)	microSDXC (uses shared SIM slot)
Internal	32GB 4GB RAM, 64GB 4GB RAM	64GB 6GB RAM, 128GB 6GB RAM
	eMMC 5.1

Main Camera
Modules	12 MP, f/2.2, 26mm (wide), 1/2.9", 1.25µm, PDAF 12 MP, f/2.6, 50mm (telephoto), 1.0µm, AF, 2x optical zoom	12 MP, f/1.7, 25mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, Laser AF, 4-axis OIS 16 MP, 50mm (telephoto), 1/3.1", 1.0µm, AF, 2x optical zoom
Features	Dual-LED dual-tone flash, HDR, panorama	LED flash, HDR, panorama
Video	4K@30fps, 1080p@30fps, 720p@120fps	4K@30fps, 1080p@30/60fps, 1080p@120fps, 720p@240fps

Selfie Camera
Modules	5 MP	8 MP, f/1.9, 22mm (wide), 1/3.2", 1.4µm, PDAF
Features		HDR
Video	1080p@30fps	1080p@30fps

Sound
Loudspeaker	Yes	Yes, dual speakers
3.5mm jack	Yes	Yes
		24-bit/192kHz audio

Comms
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
Bluetooth	4.2, A2DP, LE	5.0, A2DP, EDR, LE, aptX
Positioning	GPS, GLONASS, BDS	GPS, GLONASS, BDS, GALILEO
NFC	No	Yes
Infrared port	Yes	Yes
Radio	FM radio	FM radio
USB	USB Type-C 2.0	USB Type-C 2.0, OTG

Features
Sensors	Fingerprint (rear-mounted), accelerometer, gyro, proximity	Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, color spectrum

Battery
Type	Li-Po 3080 mAh, non-removable	Li-Ion 3600 mAh, non-removable
Charging	10W wired	18W wired, 50% in 32 min (advertised)
Talk time		Up to 27 h 30 min (3G)

Misc
Colors	Black, Gold, Rose Gold, Red	Moonlight white, Pure Black
SAR	1.75 W/kg (head)     0.76 W/kg (body)
Models	MDG2, MDI2	Z01GD, Z01GS
Price	About 170 EUR	About 350 EUR

Tests
Performance	GeekBench: 4292 (v4.4) GFXBench: 3.5fps (ES 3.1 onscreen)
Display	Contrast ratio: 1570:1 (nominal), 2.689 (sunlight)
Loudspeaker	Voice 74dB / Noise 73dB / Ring 90dB
Audio quality	Noise -91.0dB / Crosstalk -82.5dB
Battery (old)	Endurance rating 87h