Phone Comparison - Nokia Lumia 635 vs Samsung Galaxy Ace 4 vs HTC Desire 620 Dual SIM

general General Info

Manufacturer Nokia Samsung HTC
Announced April 2014 June 2014 December 2014
Status Available - May 2014 Available - July 2014 Available - December 2014
Colors Orange, Yellow, White, Black Iris Charcoal, Classic White Blue, Black, Gray, White
Form Factor Candybar Candybar Candybar
Dimension 129.5 x 66.7 x 9.2 mm
(5.1 x 2.63 x 0.36 in)
121.4 x 62.9 x 10.8 mm
(4.78 x 2.48 x 0.43 in)
150.1 x 72.7 x 9.6 mm
(5.91 x 2.86 x 0.38 in)
Weight 134 g (4.73 oz) 123.8 g (4.34.0.28 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 850 / 900 / 1900 / 2100 HSDPA 900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE - LTE 900 / 1800 / 2100 / 2600 TD-LTE 1900 / 2300 / 2600
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail

hardware Hardware and OS

OS Microsoft Windows Phone 8.1 Android OS, v4.4.2 (KitKat) Android OS, v4.4.4 (KitKat)
Processor Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 Dual-core 1.0 GHz Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410
GPU Adreno 305 - Adreno 306
RAM 512 MB 512 MB 1 GB
Internal Memory 8 GB 4 GB 8 GB
External Memory microSD, up to 64 GB microSD, up to 64 GB microSD, up to 128 GB

display Display

Type IPS LCD capacitive touchscreen TFT capacitive touchscreen Capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.5 inches 4.0 inches 5.0 inches
Resolution 480 x 854 pixels (218 ppi) 480 x 800 pixels (233 ppi) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 64.43% 59.76% 63.04%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592 х 1944 pixels 5 MP, 2592 х 1944 pixels 8 MP, 3264 x 2448 pixels
Flash No LED flash LED flash
Features Geo-tagging Auto focus, Geo-tagging, Face And Smile Detection, Panorama Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama
Video Yes, 720p@30fps Yes, 720p@30fps 1080p@30fps
Front Camera No [Similar] Yes, VGA [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA, LTE
Bluetooth Yes, v4.0 with A2DP Yes, v4.0 with A2DP v4.0, A2DP, apt-X
Wi-Fi Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS support and GLONASS Yes, with A-GPS, GLONASS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 8 GB, 512 MB RAM 4 GB, 512 MB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 64 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 not present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC not supported NFC not supported NFC supported

battery Battery

Type Li-Ion Battery Li-Ion Battery Li-Po Battery
Capacity 1830 mAh 1500 mAh 2100 mAh
Stand by Up to 648 h - -
Talk Time Up to 12 h (2G)
Up to 14 h (3G)
- -