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UMIDIGI A3

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Xiaomi Mi 4

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  UMIDIGI A3 Xiaomi Mi 4

Launch

Announced 2018, September 2014, July
Status Available. Released 2018, September Available. Released 2014, August

Network

Technology GSM / HSPA / LTE GSM / CDMA / HSPA / EVDO / LTE
2G GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - all versions
3G HSDPA 850 / 900 / 2100 TD-SCDMA - 4G model
4G LTE LTE band 38(2600), 39(1900), 40(2300) - 4G model
Speed HSPA, LTE-A HSPA 42.2/5.76 Mbps, LTE, EV-DO Rev.A 3.1 Mbps
GPRS Yes Yes
Edge Yes Yes

Body

Dimensions 70.2 mm x 147.19 mm x 8.5 mm 139.2 x 68.5 x 8.9 mm (5.48 x 2.70 x 0.35 in)
Weight 186 G 149 g (5.26 oz)
SIM Dual SIM (Nano-SIM, dual stand-by) Micro-SIM

Display

Type IPS LCD capacitive touchscreen, 16M colors IPS LCD capacitive touchscreen, 16M colors
Size 5.5 inches HD+ 5.0 inches (~72.3% screen-to-body ratio)
Resolution 720 x 1440 pixels, 18:9 ratio (~293 ppi density) 1080 x 1920 pixels (~441 ppi pixel density)
Multitouch Yes Yes

Platform

OS Android 8.1 (Oreo) Android OS, v4.4.3 (KitKat), upgradable to v6.0.1 (Marshmallow)
Chipset Mediatek MT6739, 64-bit Processor Qualcomm MSM8974AC Snapdragon 801
CPU Quad-Core 1.5GHz ARM Cortex-A53 CPU Clock Quad-core 2.5 GHz Krait 400
GPU PowerVR GE8100, 570MHz Adreno 330

Memory

Card Slot microSD, up to 128 GB No
Internal 16 GB, 2 GB RAM 16/64 GB, 3 GB RAM

Camera

Primary 12 Megapixels + 5 Megapixels Dual Rear camera 13 MP, f/1.8, autofocus, LED flash,
Features LED flash, HDR, panorama 1/3" sensor size, 1.12┬Ám pixel size, geo-tagging, touch focus, face/smile detection, panorama, HDR
Video 1080p@30fps 2160p@30fps, 1080p@30fps, 720p@120fps, HDR,
Secondary 8 Megapixels with f/2.0 Aperture, Face Recognition 8 MP, f/1.8, 1080p@30fps

Sound

Alert types Vibration; MP3, WAV ringtones Vibration; MP3, WAV ringtones
Loudspeaker Yes Voice 62dB / Noise 62dB / Ring 66dB
3.5mm Jack Yes Yes

Comms

WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
Bluetooth 4.2, A2DP, LE, aptX v4.0, A2DP
GPS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS, BDS
Radio FM radio FM radio
USB microUSB 2.0 microUSB v2.0, USB Host

Features

Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Accelerometer, gyro, proximity, compass, barometer
Messaging SMS(threaded view), MMS, Email, Push Email, IM SMS(threaded view), MMS, Email, Push Mail, IM
Browser HTML5 HTML5
Java No No

Battery

Battery Non-removable Li-Ion 3300 mAh battery Non-removable Li-Ion 3080 mAh battery
Stand-by Up to 280 Hours Up to 280 h (3G)

Misc

Colors Black, Gold Black, White