Phone Comparison - HTC Butterfly S vs HTC Butterfly 2 vs Asus Zenfone 2 ZE551ML

general General Info

Manufacturer HTC HTC Asus
Announced June 2013 August 2014 January 2015
Status Available - July 2013 Available - August 2014 Available - March 2015
Price - - Rs. 14,999 ($220.57) [Similarly Priced]
Colors Black, White, Red, Gray Red, White, Blue Osmium Black, Sheer Gold, Glacier Gray, Glamor Red, Ceramic Whit
Form Factor Candybar Candybar Candybar
Dimension 144.5 x 70.5 x 10.6 mm
(5.69 x 2.78 x 0.42 in)
146.4 x 70.6 x 9.4 mm
(5.76 x 2.78 x 0.37 in)
152.5 x 77.2 x 10.9 mm
(6 x 3.04 x 0.43 in)
Weight 160 g (5.64 oz) 160 g (5.64 oz) 170 g (6 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 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 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)
Messaging SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail, IM
Build Features - - IPX5/IPX7 certified - dust proof and water resistant up to 1 meter and 30 minutes -

hardware Hardware and OS

OS Android OS Android OS, v4.4.2 (KitKat) Android OS, v5.0 (Lollipop)
Processor Quad-core 1.9 GHz Krait 300, Qualcomm APQ8064T Snapdragon 600 Quad-core 2.5 GHz, Qualcomm Snapdragon 801 Quad-core 2.3 GHz
Quad-core 1.8 GHz, Intel Atom Z3580
Intel Atom Z3560
GPU Adreno 320 Adreno 330 PowerVR G6430
RAM 2 GB 2 GB 2/4 GB
Internal Memory 16 GB 16/32 GB 16/32/64 GB
External Memory microSD, up to 64 GB microSD, up to 128 GB microSD, up to 64 GB

display Display

Type Super LCD3 capacitive touchscreen, Corning Gorilla Glass 3 Super LCD3 Capacitive Touchscreen IPS Capacitive Touchscreen, Corning Gorilla Glass 3
Colors 16M colors 16M colors 16M colors
Size 5.0 inches 5.0 inches 5.5 inches
Resolution 1080 x 1920 pixels (441 ppi) 1080 x 1920 pixels (441 ppi) 1080 x 1920 pixels (401 ppi)
Screen-to-Body Ratio 67.52% 66.55% 70.67%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio - Stereo FM radio with RDS Yes
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 4 MP, 2688 x 1520 pixels 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels
Flash LED flash Dual-LED (dual tone) dual-LED (dual tone)
Features Auto focus, 1/3' Sensor Size, 2�m Pixel Size, Simultaneous HD Video And Image Recording, Geo-tagging, Face And Smile Detection Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, BSI Sensor Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR
Video Yes 1080p@30fps 1080p@30fps
Front Camera Yes, 2.1 MP [Similar] 5 MP, 1080p@30fps, HDR, BSI Sensor [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

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

memory User Memory

Internal 16 GB, 2 GB RAM 16/32 GB, 2 GB RAM 16/32/64 GB, 2/4 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 128 GB microSD, up to 64 GB
USB OTG - Supported 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 supported NFC supported

battery Battery

Type Non-removable, Li-Po Battery Non-removable Li-Po Battery Non-removable Li-Po Battery
Capacity 3200 mAh 2700 mAh 3000 mAh
Stand by Up to 659 h (2G)
Up to 544 h (3G)
Up to 643 h -
Talk Time Up to 25 h (2G)
Up to 19 h (3G)
Up to 23 h 54 min -