Phone Comparison - Asus Zenfone 6 vs HTC Desire 820s dual sim vs Asus Zenfone 2 Deluxe ZE551ML

general General Info

Manufacturer Asus HTC Asus
Announced January 2014 March 2015 August 2015
Status Available - June 2014 Available - March 2015 Available - August 2015
Price - Rs. 27,900 ($410.29) [Similarly Priced] Rs. 10,499 ($154.40) [Similarly Priced]
Colors Black, White, Red, Gold Marble White, Milkyway Gray, Monarch Orange, Santorini White, Tu White/Purple
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)
157.7 x 78.7 x 7.7 mm
(6.21 x 3.1 x 0.3 in)
152.5 x 77.2 x 10.9 mm
(6 x 3.04 x 0.43 in)
Weight 196 g (6.91 oz) 155 g (5.47 oz) 170 g (6 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
TD-SCDMA 1900 / 2000
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
TD-SCDMA 1900 / 2100 - India
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
TD-SCDMA 1900 / 2100 - India
4G Network - LTE 900 / 1800 / 2100 / 2600 TD-LTE 1900 / 2300 / 2500 / 2600
(Bands 1, 3, 7, 8, 38, 39, 40, 41)
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 8(900), 9(1800), 18(800), 19(800), 28(700) - Taiwan
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800) - Global
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat) Android OS, v4.4.4 (KitKat) Android OS, v5.0 (Lollipop)
Processor Dual-core 2 GHz, Intel Atom Z2580 Octa-core 1.7 GHz Cortex-A53, Mediatek MT6752 Quad-core 2.3 GHz/Quad-core 1.8 GHz, Intel Atom Z3580/Intel Atom Z3560
GPU PowerVR SGX544MP2 Mali-T760MP2 PowerVR G6430
RAM 1/2 GB 2 GB 4 GB
Internal Memory 8/16/32 GB 16 GB 64/128 GB
External Memory microSD, up to 64 GB microSD, up to 32 GB microSD, up to 128 GB

display Display

Type IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 Capacitive Touchscreen, Corning Gorilla Glass 3 IPS Capacitive Touchscreen, Corning Gorilla Glass 3
Colors 16M colors 16M colors 16M colors
Size 6.0 inches 5.5 inches 5.5 inches
Resolution 720 x 1280 pixels (245 ppi) 720 x 1280 pixels (267 ppi) 1080 x 1920 pixels (401 ppi)
Screen-to-Body Ratio 70.40% 67.20% 70.67%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No FM radio FM radio with RDS
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 LED flash LED flash dual-LED (dual tone)
Features Auto focus, Geo-tagging, Touch Focus, Face Detection Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR
Video Yes 1080p@30fps 1080p@30fps
Front Camera Yes, 2 MP [Similar] 8 MP, 1080p [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

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

memory User Memory

Internal 8/16/32 GB, 1/2 GB RAM 16 GB, 2 GB RAM 64/128 GB, 4 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 32 GB microSD, up to 128 GB

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 not supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery Non-removable Li-Po Battery Non-removable Li-Po Battery
Capacity 3300 mAh 2600 mAh 3000 mAh
Stand by Up to 398 h (3G) Up to 560 h (3G) -
Talk Time Up to 28 h (3G) Up to 12 h 10 min (3G) -