Nokia Lumia 830 vs Nokia Lumia 925

Phones Images

PHONES
Phone Names	Nokia Lumia 830	Nokia Lumia 925

Network
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900 - all versions
3G bands	HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100 - RM-892
4G bands	1, 3, 7, 8, 20	1, 3, 7, 8, 20 - RM-892
Speed	HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps	HSPA 42.2/5.76 Mbps, LTE Cat3 100/50 Mbps
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE
	2, 4, 5, 17 - AT&T	2, 4, 5, 17 - RM-893

Launch
Announced	2014, September. Released 2014, September	2013, May. Released 2013, June
Status	Discontinued	Discontinued

Body
Dimensions	139.4 x 70.7 x 8.5 mm (5.49 x 2.78 x 0.33 in)	129 x 70.6 x 8.5 mm, 78 cc (5.08 x 2.78 x 0.33 in)
SIM	Nano-SIM	Micro-SIM
Weight	150 g (5.29 oz)	139 g (4.90 oz)

Display
Protection	Corning Gorilla Glass 3	Corning Gorilla Glass 2
Resolution	720 x 1280 pixels, 16:9 ratio (~294 ppi density)	768 x 1280 pixels, 5:3 ratio (~332 ppi density)
Size	5.0 inches, 68.9 cm2 (~69.9% screen-to-body ratio)	4.5 inches, 57.6 cm2 (~63.3% screen-to-body ratio)
Type	IPS LCD	AMOLED
	ClearBlack display	PureMotion HD+ ClearBlack display

Platform
CPU	Quad-core 1.2 GHz Cortex-A7	Dual-core 1.5 GHz Krait
Chipset	Qualcomm Snapdragon 400 (28 nm)	Qualcomm MSM8960 Snapdragon S4 Plus
GPU	Adreno 305	Adreno 225
OS	Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10	Microsoft Windows Phone 8, upgradable to 8.1

Memory
Card slot	microSDXC (dedicated slot)	No
Internal	16GB 1GB RAM	16GB 1GB RAM, 32GB 1GB RAM
	eMMC 4.5	-

Main Camera
Features	Zeiss optics, LED flash, panorama	Carl Zeiss optics, dual-LED flash
Single	10 MP, f/2.2, 26mm (wide), 1/3.4", AF, OIS	8 MP, 1/3.0", AF, OIS
Video	1080p@30fps, stereo sound rec.	1080p@30fps

Selfie camera
Single	0.9 MP	1.3 MP
Video	720p	720p@30fps

Sound
3.5mm jack	Yes	Yes
35mm jack	Yes	Yes
Loudspeaker	Yes	Yes

Comms
Bluetooth	4.0, A2DP, EDR, LE, aptX	4.0, A2DP, EDR, LE/ aptX after WP8 Denim update
NFC	Yes	Yes
Positioning	GPS, GLONASS, BDS	GPS, GLONASS
Radio	FM radio	FM radio
USB	microUSB 2.0	microUSB 2.0
WLAN	Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, hotspot	Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, hotspot

Features
Sensors	Accelerometer, gyro, proximity, compass	Accelerometer, gyro, proximity, compass

Battery
Charging	Wireless (Qi)	-
Music play	Up to 78 h	Up to 55 h
Stand-by	Up to 528 h	Up to 440 h (3G)
Talk time	Up to 12 h 54 min (2G) / Up to 14 h 48 min (3G)	Up to 18 h 20 min (2G) / Up to 12 h 40 min (3G)
Type	Li-Ion 2200 mAh, removable (BV-L4A)	Li-Ion 2000 mAh, non-removable (BL-4YW)

Misc
Colors	Orange, green, white, black, gold	Black, White, Gray
Price	About 330 EUR	About 260 EUR
SAR	0.87 W/kg (head)     0.83 W/kg (body)	1.42 W/kg (head)     1.00 W/kg (body)
SAR EU	0.46 W/kg (head)     0.59 W/kg (body)	0.81 W/kg (head)

Tests
Audio quality	Noise -89.7dB / Crosstalk -91.6dB	Noise -82.5dB / Crosstalk -81.2dB
Battery life	Endurance rating 68h	-
Camera	Photo / Video	Photo / Video
Display	Contrast ratio: 1078 (nominal), 1887 (sunlight)	Contrast ratio: Infinite (nominal) / 3.402:1 (sunlight)
Loudspeaker	Voice 65dB / Noise 66dB / Ring 78dB	Voice 63dB / Noise 72dB / Ring 66dB

OUR TESTS
Audio quality	Noise -89.7dB / Crosstalk -91.6dB	Noise -82.5dB / Crosstalk -81.2dB
Battery (old)	Endurance rating 68h	-
Camera	Photo / Video	Photo / Video
Display	Contrast ratio: 1078 (nominal), 1887 (sunlight)	Contrast ratio: Infinite (nominal) / 3.402:1 (sunlight)
Loudspeaker	Voice 65dB / Noise 66dB / Ring 78dB	Voice 63dB / Noise 72dB / Ring 66dB