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Network	Technology	GSM / HSPA	GSM / HSPA / LTE
	2G bands	GSM 850 / 900 / 1800 / 1900 - all versions	GSM 850 / 900 / 1800 / 1900 - RM-821, RM-820
	3G Network	HSDPA 900 / 2100 - RM-914	HSDPA 850 / 900 / 1900 / 2100 - RM-821, RM-820
		HSDPA 850 / 1900 / 2100 - RM-915
		HSDPA 850 / 1700 / 1900 / 2100 - RM-917
	4G Network		LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800) - RM-821
			LTE band 4(1700/2100), 17(700) - RM-820 (AT&T)
	Speed	HSPA 21.1/5.76 Mbps	HSPA 42.2/5.76 Mbps, LTE Cat3 100/50 Mbps

Launch	Announced	2013, February. Released 2013, April	2012, September
	Status	Discontinued	Available. Released 2012, November

Body	Dimensions	119.9 x 64 x 9.9 mm, 75.7 cc (4.72 x 2.52 x 0.39 in)	130.3 x 70.8 x 10.7 mm, 99 cc (5.13 x 2.79 x 0.42 in)
	Weight	124 g (4.37 oz)	185 g (6.53 oz)
	Build	Plastic body
	SIM	Micro-SIM	Micro-SIM

Display	Type	IPS LCD capacitive touchscreen, 16M colors	IPS LCD capacitive touchscreen, 16M colors
	Size	4.0 inches, 45.5 cm2 (~59.3% screen-to-body ratio)	4.5 inches, 57.6 cm2 (~62.5% screen-to-body ratio)
	Resolution	480 x 800 pixels, 5:3 ratio (~233 ppi density)	768 x 1280 pixels, 5:3 ratio (~332 ppi density)
	Protection	Scratch-resistant glass	Corning Gorilla Glass 2
			PureMotion HD+ ClearBlack display

Platform	OS	Microsoft Windows Phone 8, upgradable to 8.1	Microsoft Windows Phone 8, upgradable to 8.1
	Chipset	Qualcomm MSM8227	Qualcomm MSM8960 Snapdragon S4 Plus
	CPU	Dual-core 1.0 GHz	Dual-core 1.5 GHz Krait
	GPU	Adreno 305	Adreno 225

Memory	Card slot	microSD, up to 64 GB (dedicated slot)	No
	Internal	8GB 512MB RAM	32GB 1GB RAM

Main Camera	Modules	5 MP, f/2.4, 28mm (wide), 1/4", AF	8 MP, f/2.0, 26mm (wide), 1/3", AF, OIS
	Features		Carl Zeiss optics, dual-LED flash
	Video	720p@30fps	1080p@30fps

Selfie Camera	Modules	No	1.3 MP
	Video		720p@30fps

Sound	Loudspeaker	Yes	Yes
	3.5mm jack	Yes	Yes
		Active noise cancellation with dedicated mic	Dolby Headphone Active noise cancellation with dedicated mic

Comms	WLAN	Wi-Fi 802.11 b/g/n, hotspot	Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, hotspot
	Bluetooth	4.0, A2DP, LE/ aptX after WP8 Denim update	4.0, A2DP, EDR, LE/ aptX after WP8 Denim update
	GPS	Yes, with A-GPS, GLONASS	Yes, with A-GPS, GLONASS
	NFC		Yes
	Infrared port	No	No
	Radio	FM Radio	FM radio
	USB	microUSB 2.0	microUSB 2.0

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

Battery		Removable Li-Ion 1430 mAh battery (BL-5J)	Non-removable Li-Ion 2000 mAh battery (BP-4GW)
	Charging		Qi wireless charging
	Stand-by	Up to 360 h (3G)	Up to 400 h (2G) / Up to 400 h (3G)
	Talk time	Up to 14 h 40 min (2G) / Up to 9 h 40 min (3G)	Up to 17 h (2G) / Up to 10 h (3G)
	Music play	Up to 61 h	Up to 67 h

Misc
	Colors	Yellow, red, cyan, white/black	Black, Gray, Red, Yellow, White
	SAR	0.77 W/kg (head)	1.08 W/kg (head)     0.91 W/kg (body)
	SAR EU	1.09 W/kg (head)	0.70 W/kg (head)
	Price	About 70 EUR	About 210 EUR

Tests	Display	Contrast ratio: 834:1 (nominal) / 1.161:1 (sunlight)	Contrast ratio: 1065:1 (nominal) / 2.107:1 (sunlight)
	Camera	Compare PHOTO / Compare VIDEO
	Loudspeaker	Voice 68dB, noise 69dB, ring 66dB	Voice 61dB, noise 64dB, ring 65dB
	Audio quality	Noise -82.3dB / Crosstalk -81.8dB	Noise -78.9dB / Crosstalk -75.0dB
	Battery life	49h endurance rating	44h endurance rating