Compare specs

Network	Technology	GSM / HSPA	GSM / HSPA
	2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
	3G bands	HSDPA 850 / 900 / 1900 / 2100	HSDPA 900 / 2100
			HSDPA 850 / 900 / 1900 / 2100
	Speed	HSPA 21.1/5.76 Mbps	HSPA 21.1/5.76 Mbps

Launch	Announced	2014, May. Released 2014, May	2014, July. Released 2014, August
	Status	Discontinued	Discontinued

Body	Dimensions	124.8 x 64.8 x 12.3 mm (4.91 x 2.55 x 0.48 in)	119.7 x 62.3 x 11.7 mm, 86.8 cc (4.71 x 2.45 x 0.46 in)
	Weight	142 g (5.01 oz)	129 g (4.55 oz)
	SIM	Micro-SIM	Micro-SIM

Display	Type	IPS LCD,	TFT
	Size	4.3 inches, 51.0 cm2 (~63.0% screen-to-body ratio)	4.0 inches, 44.1 cm2 (~59.1% screen-to-body ratio)
	Resolution	540 x 960 pixels, 16:9 ratio (~256 ppi density)	480 x 854 pixels, 16:9 ratio (~245 ppi density)
	Protection	Corning Gorilla Glass 3

Platform	OS	Android 4.4.2 (KitKat), upgradable to 5.1 (Lollipop)	Microsoft Windows Phone 8.1
	Chipset	Qualcomm Snapdragon 200 (28 nm)	Qualcomm Snapdragon 200 (28 nm)
	CPU	Dual-core 1.2 GHz Cortex-A7	Quad-core 1.2 GHz Cortex-A7
	GPU	Adreno 302	Adreno 302

Memory	Card slot	microSDHC (dedicated slot)	microSDXC (dedicated slot)
	Internal	4GB 1GB RAM	4GB 512MB RAM
		eMMC 4.5	eMMC 4.5

Main Camera	Modules	5 MP, f/2.4	5 MP, 1/4.0"
	Features	Panorama, HDR
	Video	480p@30fps	480p@30fps

Selfie Camera	Modules	No	No

Sound	Loudspeaker	Yes	Yes
	3.5mm jack	Yes	Yes

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

Features	Sensors	Accelerometer, proximity	Accelerometer

Battery	Type	Li-Ion 1980 mAh, non-removable	Li-Ion 1430 mAh, removable (BL-5J)
	Stand-by		Up to 528 h
	Talk time		Up to 13 h 20 min (2G) / Up to 10 h (3G)
	Music play		Up to 51 h

Misc
	Colors	Black, White	Bright orange, Bright green, White, Dark grey
	SAR	0.97 W/kg (head)     1.50 W/kg (body)	0.77 W/kg (head)     0.99 W/kg (body)
	SAR EU	0.76 W/kg (head)	1.09 W/kg (head)     1.19 W/kg (body)
	Models	XT1021
	Price	About 100 EUR	About 100 EUR

Tests	Display	Contrast ratio: 1062 (nominal), 1.545 (sunlight)
	Loudspeaker	Voice 75dB / Noise 71dB / Ring 81dB
	Audio quality	Noise -93.7dB / Crosstalk -92.0dB
	Battery life	60h endurance rating