Phone Comparison - ZTE Grand S II S291 vs HTC Desire 820 vs HTC Desire 620 Dual SIM

general General Info

Manufacturer ZTE HTC HTC
Announced January 2014 September 2014 December 2014
Status Available - March 2014 Coming Soon - September 2014 Available - December 2014
Colors Silver Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tang Blue, Black, Gray, White
Form Factor Candybar Candybar Candybar
Dimension 157 x 77 x 9.1 mm
(6.18 x 3.03 x 0.36 in)
157.7 x 78.7 x 7.7 mm
(6.21 x 3.1 x 0.3 in)
150.1 x 72.7 x 9.6 mm
(5.91 x 2.86 x 0.38 in)
Weight 150 g (5.29 oz) 155 g (5.47 oz) 160 g (5.64 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 900 / 2100 HSDPA 850 / 900 / 1900 / 2100 - EMEA version
HSDPA 900 / 2100 - Asia version
HSDPA 850 / 900 / 1900 / 2100
4G Network LTE 1800 / 2100 / 2600 (Bands 1, 3, 7) LTE 900 / 1800 / 2100 / 2600 - EMEA version LTE 900 / 1800 / 2100 / 2600 TD-LTE 1900 / 2300 / 2600
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail

hardware Hardware and OS

OS Android OS, v4.3 (Jelly Bean) Android OS, v4.4.2 (KitKat) Android OS, v4.4.4 (KitKat)
Processor Quad-core 2.3 GHz Krait 400, Qualcomm Snapdragon 800 Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410
GPU Adreno 330 Adreno 405 Adreno 306
RAM 2 GB 2 GB 1 GB
Internal Memory 16 GB storage 16 GB 8 GB
External Memory microSD, up to 32 GB microSD, up to 128 GB microSD, up to 128 GB

display Display

Type Capacitive touchscreen LCD Capacitive Touchscreen 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) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 68.82% 67.20% 63.04%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio - No 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 8 MP, 3264 x 2448 pixels
Flash LED flash LED flash LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face Detection Auto focus, Geo-tagging, Touch Focus, Face Detection, Simultaneous HD Video And Image Recording, HDR Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama
Video Yes, 1080p@30fps 1080p@30fps, 720p@60fps 1080p@30fps
Front Camera Yes, 2 MP, 1080p@30fps [Similar] 8 MP, 1080p [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA+, LTE HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL HSPA, LTE
Bluetooth Yes, v4.0 with A2DP v4.0, A2DP v4.0, A2DP, apt-X
Wi-Fi Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, 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
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16 GB storage, 2 GB RAM 16 GB, 2 GB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 128 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 supported NFC not supported NFC supported

battery Battery

Type Non-removable Li-Ion Battery Non-removable Li-Po Battery Li-Po Battery
Capacity 3000 mAh 2600 mAh 2100 mAh
Stand by - Up to 424 h (3G) -
Talk Time - Up to 22 h 24 min (3G) -