Compare Elephone S8 with UmiDigi S2 Pro with Xiaomi Mi A1 with ZTE Axon 7

Compare Elephone S8 vs UmiDigi S2 Pro vs Xiaomi Mi A1 vs ZTE Axon 7

Summary	77 Score	79 Score	78 Score	78 Score
Performance	Helio X20 SoC 4 GB RAM Android Nougat 7.1.1	6 GB RAM Android v7.0 (Nougat)	Qualcomm Snapdragon 625 4 GB RAM Android Nougat 7.1.2, Stock Android Version	Qualcomm Snapdragon 820 MSM8996 4 GB RAM Android v6.0 (Marshmallow)
Display	6 inch 1440 x 2560 pixels 401 PPI Density	6 inch 1080 x 2160 pixels 401 PPI Density	5.5 inch 1080 x 1920 pixels 401 PPI Density	5.5 inch 1440 x 2560 pixels 534 PPI Density
Camera	21 MP (Main) 8 MP (Front)	13 + 5 MP (Main) 16 MP (Front) Dual Camera	12 + 12 MP (Main) 5 MP (Front) 4K Video Recording Primary Lens: f/2.2, 1.25 microns Pixel Size, Telephoto Lens: f/2.6, 1.0 micron Pixel Size, PDAF, Optical Zoom: 2x	20 MP (Main) 8 MP (Front) 4K Video Recording
Battery	4000 mAh Li-ion	5100 mAh	3080 mAh Li-Po	3250 mAh Li-Po
Display
Screen Size	6 inch	6 inch	5.5 inch	5.5 inch
Screen Resolution	1440 x 2560 pixels	2160 x 1080 Pixels	1080 x 1920 pixels	1440 x 2560 pixels
Pixel Density	401 PPI	401 PPI	401 PPI	534 PPI
Display Type	Quad HD+	SHARP TDDI In-cell	FHD IPS, 2.5D Curved glass	WQHD AMOLED,2.5D
Gorilla Glass	Yes	Yes	Yes	-
Screen Protection	Corning Gorilla Glass	-	Corning Gorilla Glass 3	-
Chipset
Brand	Elephone Mobiles	UMiDIGI Mobiles	Xiaomi Mobiles	ZTE Mobiles
Chipset	Helio X20 SoC		Qualcomm Snapdragon 625	Qualcomm Snapdragon 820 MSM8996
Processor	2.5 GHz Deca-core processor	Octo-core 2.3GHz	2GHz Octa-core Processor	2.15GHz Quad core Processor
RAM	4 GB RAM	6 GB RAM	4 GB RAM	4 GB RAM
GPU	ARM Mali T880	Mali-T880 MP2 900MHz	Adreno 506	Adreno 530
Camera
Rear Camera Resolution	21 MP	13 + 5 MP	12 + 12 MP	20 MP
Front Camera Resolution	8 MP	16 MP	5 MP	8 MP
Video			4K Video Recording	4K Video Recording
Camera Features	Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging	Autofocus, Touch Focus, Flash, Panorama	Autofocus, Touch Focus, Flash, Panorama	Autofocus, Touch Focus, Flash, Geo-Tagging
General
Operating System	Android	Android	Android	Android
OS Version	Android Nougat 7.1.1	Android v7.0 (Nougat)	Android Nougat 7.1.2, Stock Android Version	Android v6.0 (Marshmallow)
Weight	180 g	186 g	168 g	175 g
Dimensions		158.1 x 74.6 x 8.8mm	75.8 x 155.4 x 7.3 mm	151.7 * 75 * 7.9mm
Thickness	8.6mm	8.8mm	7.3mm	7.9mm
Storage
Internal Storage	64 GB	128 GB	64 GB	64 GB
Card Slot	microSD, Up to 128GB	microSD, Up to 256 GB	microSD, upto 128GB	microSD, Up to 128 GB
Other	64 GB, Expandable up to 128 GB	128 GB, Expandable up to 256 GB	64 GB , Expandable upto 128GB	64GB storage, Expandable Up to 128GB
Communication
SIM Card Slots	Dual SIM	Dual SIM	Dual SIM	Dual SIM
SIM Card Type	Nano-SIM	Nano-SIM	Nano-SIM	Nano-SIM
Bluetooth	v4.1	v4.2	v4.2	v4.2
3.5 mm Jack	Yes	Yes	Yes	Yes
NFC	No		No
Connectivity
VoLTE
4G	LTE Cat 4 150/50 Mbps, LTE Cat 6 300/50 Mbps OR LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800) OR LTE 700 / 800 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600	FDD-LTE--800 / 1800 / 1900 / 2100 / 2600 MHz	LTE - TDD Band (40 / 41), FDD Band (1 / 3 / 5)	TD-LTE?Band 38/40/41, FDD-LTE? Band 1/2/3/4/5/7/8/19/20/28AB
3G	850 / 900 / 1900 / 2100 , Speed: 42.2 Mbps (HSDPA), 5.76 Mbps;(HSUPA)	UMTS 2100 / 900 MHz	UMTS 2100 / 900 MHz	UMTS? Band 1/2/4/5/8
2G	850 / 900 / 1800 / 1900 MHz GSM	GSM 1800 / 1900 / 850 / 900 MHz	GSM 1800 / 1900 / 850 / 900 MHz	GSM? Band 2/3/5/8
Wi-Fi	Wi-Fi 802.11 b/g/n	Wi-Fi 802.11 a/b/g/n	Wi-Fi 802.11, b/g/n	Wi-Fi 802.11, b/g/n
GPS	A-GPS	A-GPS	A-GPS	A-GPS, Glonass
GPRS
EDGE
Radio
Battery
Battery Capacity	4000 mAh	5100 mAh	3080 mAh	3250 mAh
Battery Type	Li-ion		Li-Po	Li-Po
Standby Time				Up to 360 Hours(2G)
Talk Time				Up to 16 Hours(2G)
Other Features
Fingerprint Scanner
Waterproof
Sensors	Accelerometer Proximity	P-Sensor L-Sensor Accelerometer Compass Glonass	Ambient Light Sensor Proximity Sensor E-compass Accelerometer Gyroscope Hall Sensor	Light sensor Proximity sensor Accelerometer Compass Gyroscope
Messaging
Java
Other