Phone Comparison - Nokia Lumia 920 vs Nokia Lumia 925 vs Nokia Lumia 638

general General Info

Manufacturer Nokia Nokia Nokia
Announced September 2012 May 2013 December 2014
Status Available - November 2012 Available - June 2013 Available - December 2014
Price - - Rs. 7,999 ($117.63) [Similarly Priced]
Colors Black, Gray, Red, Yellow Black, White Black
Form Factor Candybar Candybar Candybar
Dimension 130.3 x 10.7 x 10.7 mm
(5.13 x 0.42 x 0.42 in)
129 x 70.6 x 8.5 mm
(5.08 x 2.78 x 0.33 in)
129.5 x 66.7 x 9.2 mm
(5.1 x 2.63 x 0.36 in)
Weight 185 g (6.53 oz) 139 g (4.9 oz) 136 g (4.8 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 - RM-892, RM-893
HSDPA 850 / 900 / 1700 / 1900 / 2100 - RM-910
HSDPA 850 / 900 / 1900 / 2100
4G Network LTE 800 / 1800 / 2600 / 900 / 2100 LTE 800 / 900 / 1800 / 2100 / 2600 - RM-892
LTE 700 / 1700 / 2100 - RM-893
LTE 1800 / 1900 / 2100 / 2300 / 2500 / 2600 (Bands 3, 7, 38, 39, 40, 41)
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Microsoft Windows Phone 8 Microsoft Windows Phone 8 Microsoft Windows Phone 8.1
Processor Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400
GPU Adreno 225 Adreno 225 Adreno 305
RAM 1 GB 1 GB 1 GB
Internal Memory 32 GB storage 16/32 GB storage 8 GB
External Memory No No microSD, up to 128 GB

display Display

Type IPS TFT capacitive touchscreen AMOLED capacitive touchscreen IPS LCD capacitive touchscreen, Corning Gorilla Glass 3, ClearBlack Display
Colors 16M colors 16M colors 16M colors
Size 4.5 inches 4.5 inches 4.5 inches
Resolution 720 x 1280 pixels (326 ppi) 768 x 1280 pixels (332 ppi) 480 x 854 pixels (218 ppi)
Screen-to-Body Ratio 401.28% 63.18% 64.43%
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 8 MP, Carl Zeiss optics, 3264 x 2448 pix 8.7 MP, 3264 x 2448 pixels 5 MP, 2592 х 1944 pixels
Flash LED flash Dual-LED flash No
Features Auto focus, PureView Technology, Geo-tagging PureView Technology, Geo-tagging, Touch Focus, Optical image stabilization, Still image editor, Face recognition Auto focus, 1/4
Video Yes, 1080p@30fps Yes, 1080p@30fps, video stabilization Yes
Front Camera Yes [Similar] Yes, 1.2 MP wide Angle, 720p@30fps [Similar] No [Similar]

connectivity Connectivity and Data Rate

GPRS Class 33 Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps Yes
Edge Class 33 Up to 236.8 kbps Yes
3G HSDPA, 42 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth Yes, v3.1 with A2DP, EDR Yes, v4.0 with A2DP, EDR v4.0, A2DP, LE/ apt-X after WP8 Denim update
Wi-Fi Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, DLNA, hotspot
USB Yes, microUSB v2.0, USB On-the-go support 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 32 GB storage, 1 GB RAM 16/32 GB storage, 1 GB RAM 8 GB, 1 GB RAM
Expandable Storage No No microSD, up to 128 GB
USB OTG 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 not supported

battery Battery

Type Standard battery, Li-Ion Non-removable Li-Ion Battery (BL-4YW) Li-Ion Battery (BL-5H)
Capacity 2000 mAh 2000 mAh 1830 mAh
Stand by Up to 400 h (2G)
Up to 400 h (3G)
Up to 440 h (3G) -
Talk Time Up to 17 h (2G)
Up to 10 h (3G)
Up to 18 h 18 min (2G)
Up to 12 h 48 min (3G)
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