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Network	Technology	GSM / HSPA / LTE
	2G bands	GSM 850 / 900 / 1800 / 1900
	3G bands	HSDPA 850 / 900 / 1900 / 2100
	4G bands	3, 7, 8, 20
	Speed	HSPA 42.2/21.1(AT&T)/5.76 Mbps, LTE Cat4 150/50 Mbps

Launch	Announced	2014, March 25. Released 2014, March 27
	Status	Discontinued

Body	Dimensions	146.4 x 70.6 x 9.4 mm (5.76 x 2.78 x 0.37 in)
	Weight	160 g (5.64 oz)
	Build	Glass front (Gorilla Glass 3), aluminum back, aluminum frame
	SIM	Nano-SIM

Display	Type	Super LCD3
	Size	5.0 inches, 68.9 cm2 (~66.7% screen-to-body ratio)
	Resolution	1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
	Protection	Corning Gorilla Glass 3

Platform	OS	Android 4.4.2 (KitKat), upgradable to 6.0 (Marshmallow), Sense UI 6
	Chipset	Qualcomm MSM8974AB Snapdragon 801 (28 nm)
	CPU	Quad-core 2.3 GHz (US/EMEA)/ 2.5 GHz (Asia, China) Krait 400
	GPU	Adreno 330

Memory	Card slot	microSDXC (dedicated slot)
	Internal	16GB 2GB RAM, 32GB 2GB RAM
		eMMC 5.0

Main Camera	Modules	4 MP, f/2.0, 27mm (wide), 1/3.0", 2µm, AF 4 MP, (depth)
	Features	HDR, panorama, dual-LED dual-tone flash
	Video	1080p@60fps, 720p@120fps, HDR, stereo sound rec.

Selfie Camera	Modules	5 MP, f/2.0
	Features	HDR
	Video	1080p@30fps

Sound	Loudspeaker	Yes, with stereo speakers
	3.5mm jack	Yes
		24-bit/192kHz audio

Comms	WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
	Bluetooth	4.0, A2DP, aptX
	Positioning	GPS, GLONASS
	NFC	Yes (market/operator dependent)
	Infrared port	Yes
	Radio	Stereo FM radio, RDS
	USB	microUSB 2.0 (MHL TV-out), OTG

Features	Sensors	Accelerometer, gyro, proximity, compass, barometer

Battery	Type	Li-Po 2600 mAh, non-removable
	Charging	18W wired, QC2
	Stand-by	Up to 271 h (2G) / Up to 496 h (3G)
	Talk time	Up to 14 h (2G) / Up to 20 h (3G)

Misc
	Colors	Gunmetal Gray, Glacial Silver, Amber Gold
	SAR EU	0.42 W/kg (head)     0.22 W/kg (body)
	Models	One_M8, M8x, 831C
	Price	About 250 EUR

Tests	Performance	Basemark OS II 2.0: 1186 Basemark X: 12257
	Display	Contrast ratio: 1256 (nominal), 2.371 (sunlight)
	Loudspeaker	Voice 65dB / Noise 64dB / Ring 75dB
	Audio quality	Noise -95.4dB / Crosstalk -93.2dB
	Battery (old)	Endurance rating 77h