Phone Comparison - Samsung Ativ S vs Nokia Lumia 820 vs Huawei Ascend G615

general General Info

Manufacturer Samsung Nokia Huawei
Announced August 2012 Expected September 2012 January 2013
Status Released - December 2012 Available - November 2012 Available - March 2013
Colors Gray Black, Gray, Red, Yellow, White, Blue, Violet Metallic black, Ceramic white
Form Factor Candybar Candybar Candybar
Dimension 137.2 x 70.5 x 8.7 mm
(5.4 x 2.78 x 0.34 in)
123.8 x 68.5 x 9.9 mm
(4.87 x 2.7 x 0.39 in)
134 x 67.5 x 10.5 mm
(5.28 x 2.66 x 0.41 in)
Weight 135 g (4.76 oz) 160 g (5.64 oz) 145 g (5.11 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA
4G Network - LTE 800 / 1800 / 2600 / 2100/ 900 -
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Microsoft Windows Phone 8 Microsoft Windows Phone 8 Android OS, v4.0 (Ice Cream Sandwich), upgradable to v4.1 (Jelly Bean)
Processor Dual-core Krait 1.5 GHz, Qualcomm MSM8960 Snapdragon Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon Quad-core 1.4 GHz Cortex-A9, Huawei K3V2
GPU Adreno 225 Adreno 225 Vivante GC4000
RAM 1 GB 1 GB 1 GB
Internal Memory 16/32 GB storage 8 GB storage 8 GB
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type Super AMOLED capacitive touchscreen AMOLED capacitive touchscreen IPS LCD, capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.8 inches 4.3 inches 4.5 inches
Resolution 720 x 1280 pixels (306 ppi) 480 x 800 pixels (217 ppi) 720 x 1280 pixels (326 ppi)
Screen-to-Body Ratio 65.65% 62.04% 61.85%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 8 MP, 3264x2448 pixels 8 MP, 3264x2448 pixels, Carl Zeiss Tessa 8 MP, 3264x2448 pixels
Flash LED flash LED flash dual-LED flash
Features Auto focus, Geo-tagging, Image Stabilization Auto focus, Geo-tagging Auto focus, Geo-tagging
Video Yes, 1080p@30fps Yes Yes, 1080p@30fps
Front Camera Yes, 1.9 MP [Similar] Yes [Similar] Yes, 1.3 MP, 720p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 42 Mbps; HSUPA, 5.76 Mbps HSDPA, 42 Mbps
HSUPA, 5.76 Mbps
LTE, Cat3, 50 Mbps UL, 100 Mbps DL
HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, v3.0 with A2DP Yes, v3.1 with A2DP, EDR Yes, v3.0 with A2DP, HS
Wi-Fi Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n, Wi-Fi hotspot, DLNA
USB Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS support Yes, with A-GPS support
Browser HTML5 HTML5 HTML5

memory User Memory

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

battery Battery

Type Standard battery, Li-Ion Standard battery, Li-Ion Standard battery, Li-Ion
Capacity 2300 mAh 1650 mAh 2150 mAh
Stand by Up to 168 h (2G)
Up to 218 h (3G)
Up to 330 h (2G)
Up to 330 h (3G)
Up to 360 h
Talk Time Up to 8 h (2G)
Up to 14 h 50 min (3G)
Up to 14 h (2G)
Up to 8 h (3G)
Up to 11 h