Phone Comparison - Asus Zenfone 2 ZE551ML vs HTC Desire 820s dual sim vs Xiaomi Mi 4i

general General Info

Manufacturer Asus HTC Xiaomi
Announced January 2015 March 2015 April 2015
Status Available - March 2015 Available - March 2015 Available - April 2015
Price Rs. 14,999 ($220.57) [Similarly Priced] Rs. 27,900 ($410.29) [Similarly Priced] Rs. 8,999 ($132.34) [Similarly Priced]
Colors Osmium Black, Sheer Gold, Glacier Gray, Glamor Red, Ceramic Whit Marble White, Milkyway Gray, Monarch Orange, Santorini White, Tu Black, White, Blue, Yellow, Pink
Form Factor Candybar Candybar Candybar
Dimension 152.5 x 77.2 x 10.9 mm
(6 x 3.04 x 0.43 in)
157.7 x 78.7 x 7.7 mm
(6.21 x 3.1 x 0.3 in)
138.1 x 69.6 x 7.8 mm
(5.44 x 2.74 x 0.31 in)
Weight 170 g (6 oz) 155 g (5.47 oz) 130 g (4.59 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
TD-SCDMA 1900 / 2000
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE 700 / 800 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600
(Bands 1, 2, 3, 4, 5, 7, 8, 9, 17, 18, 19, 20, 28, 29)
LTE 900 / 1800 / 2100 / 2600 TD-LTE 1900 / 2300 / 2500 / 2600
(Bands 1, 3, 7, 8, 38, 39, 40, 41)
LTE
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v5.0 (Lollipop) Android OS, v4.4.4 (KitKat) Android OS, v5.0 (Lollipop)
Processor Quad-core 2.3 GHz
Quad-core 1.8 GHz, Intel Atom Z3580
Intel Atom Z3560
Octa-core 1.7 GHz Cortex-A53, Mediatek MT6752 Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615
GPU PowerVR G6430 Mali-T760MP2 Adreno 405
RAM 2/4 GB 2 GB 2 GB
Internal Memory 16/32/64 GB 16 GB 16/32 GB
External Memory microSD, up to 64 GB microSD, up to 32 GB No

display Display

Type IPS Capacitive Touchscreen, Corning Gorilla Glass 3 Capacitive Touchscreen, Corning Gorilla Glass 3 IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 5.5 inches 5.0 inches
Resolution 1080 x 1920 pixels (401 ppi) 720 x 1280 pixels (267 ppi) 1080 x 1920 pixels (441 ppi)
Screen-to-Body Ratio 70.67% 67.20% 71.57%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Yes FM radio FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 13 MP, 4128 x 3096 pixels 13 MP, 4160 x 3120 pixels 13 MP, 4128 x 3096 pixels
Flash dual-LED (dual tone) LED flash LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR
Video 1080p@30fps 1080p@30fps 1080p@30fps
Front Camera 5 MP [Similar] 8 MP, 1080p [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA, LTE
Bluetooth v4.0, A2DP, EDR v4.0, A2DP v4.0, A2DP
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot Wi-Fi 802.11 b/g/n, hotspot Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
USB microUSB v2.0, USB Host microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16/32/64 GB, 2/4 GB RAM 16 GB, 2 GB RAM 16/32 GB, 2 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 32 GB No
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 supported NFC not supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery Non-removable Li-Po Battery Li-Po Battery
Capacity 3000 mAh 2600 mAh 3120 mAh
Stand by - Up to 560 h (3G) -
Talk Time - Up to 12 h 10 min (3G) -