Phone Comparison - Asus Zenfone 6 vs Xiaomi Mi 3 vs HTC Desire 820

general General Info

Manufacturer Asus Xiaomi HTC
Announced January 2014 September 2013 September 2014
Status Available - June 2014 Available - December 2013 Coming Soon - September 2014
Colors Black, White, Red, Gold Various Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tang
Form Factor Candybar Candybar Candybar
Dimension 166.9 x 84.3 x 5.5-9.9 mm
(6.57 x 3.32 x 0.22-0.39 in)
144 x 73.6 x 8.1 mm
(5.67 x 2.9 x 0.32 in)
157.7 x 78.7 x 7.7 mm
(6.21 x 3.1 x 0.3 in)
Weight 196 g (6.91 oz) 145 g (5.11 oz) 155 g (5.47 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 - EMEA version
HSDPA 900 / 2100 - Asia version
4G Network - - LTE 900 / 1800 / 2100 / 2600 - EMEA version
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail

hardware Hardware and OS

OS Android OS, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat) Android OS, v4.4 (KitKat) optimized with MIUI version 5 Android OS, v4.4.2 (KitKat)
Processor Dual-core 2 GHz, Intel Atom Z2580 Quad-core 2.3 GHz Krait 400, Qualcomm MSM8274AB Snapdragon 800 Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615
GPU PowerVR SGX544MP2 Adreno 330 Adreno 405
RAM 1/2 GB 2 GB 2 GB
Internal Memory 8/16/32 GB 16/64 GB 16 GB
External Memory microSD, up to 64 GB No microSD, up to 128 GB

display Display

Type IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 IPS LCD capacitive touchscreen LCD Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 6.0 inches 5.0 inches 5.5 inches
Resolution 720 x 1280 pixels (245 ppi) 1080 x 1920 pixels (441 ppi) 720 x 1280 pixels (267 ppi)
Screen-to-Body Ratio 70.40% 64.90% 67.20%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No FM radio No
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels 13 MP, 4160 x 3120 pixels
Flash LED flash dual-LED flash LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face Detection Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR Auto focus, Geo-tagging, Touch Focus, Face Detection, Simultaneous HD Video And Image Recording, HDR
Video Yes 1080p@30fps, HDR 1080p@30fps, 720p@60fps
Front Camera Yes, 2 MP [Similar] 2 MP, 1080p@30fps [Similar] 8 MP, 1080p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL
Bluetooth Yes, v4.0 with A2DP, EDR v4.0, A2DP v4.0, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot
USB Yes, microUSB v2.0 microUSB v2.0 (MHL), USB On-the-go microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS
Browser HTML HTML5 HTML5

memory User Memory

Internal 8/16/32 GB, 1/2 GB RAM 16/64 GB, 2 GB RAM 16 GB, 2 GB RAM
Expandable Storage microSD, up to 64 GB No microSD, up to 128 GB
USB OTG - Supported -

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint not supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC not supported NFC supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery Non-removable Li-Ion Battery Non-removable Li-Po Battery
Capacity 3300 mAh 3050 mAh 2600 mAh
Stand by Up to 398 h (3G) Up to 500 h Up to 424 h (3G)
Talk Time Up to 28 h (3G) Up to 4 h Up to 22 h 24 min (3G)