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Xiaomi Redmi 4A

Samsung Galaxy Note 4

Network
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE
2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900
3G Network	HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100
		HSDPA 850 / 1700 / 1900 / 2100 - N910W8
4G Network	1, 3, 4, 5, 7, 20, 38, 40	1, 2, 3, 4, 5, 7, 8, 17, 20 - N910F, N910C
		1, 2, 3, 4, 5, 7, 8, 28, 38, 40 - N910G
		1, 2, 3, 4, 5, 7, 8, 12, 17 - N910W8
		1, 2, 3, 4, 5, 7, 8, 28 - N910U
Speed	HSPA, LTE	HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps (Exynos 5433) HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps (Snapdragon 805)

Launch
Announced	2016, November. Released 2016, November	2014, September 03. Released 2014, October
Status	Discontinued	Discontinued

Body
Dimensions	139.9 x 70.4 x 8.5 mm (5.51 x 2.77 x 0.33 in)	153.5 x 78.6 x 8.5 mm (6.04 x 3.09 x 0.33 in)
3D size compare	Size up
Weight	131.5 g (4.66 oz)	176 g (6.21 oz)
Build	Glass front, plastic back, plastic frame	Glass front (Gorilla Glass 4), plastic back, aluminum frame
SIM	Hybrid Dual SIM (Nano-SIM/ Micro-SIM, dual stand-by)	Micro-SIM
		Stylus

Display
Type	IPS LCD	Super AMOLED
Size	5.0 inches, 68.0 cm2 (~69.0% screen-to-body ratio)	5.7 inches, 88.5 cm2 (~73.4% screen-to-body ratio)
Resolution	720 x 1280 pixels, 16:9 ratio (~296 ppi density)	1440 x 2560 pixels, 16:9 ratio (~518 ppi density)
Protection		Corning Gorilla Glass 4

Platform
OS	Android 6.0.1 (Marshmallow), MIUI 10	Android 4.4.4 (KitKat), upgradable to 6.0.1 (Marshmallow)
Chipset	Qualcomm MSM8917 Snapdragon 425 (28 nm)	Qualcomm APQ8084 Snapdragon 805 (28 nm) Exynos 5433
CPU	Quad-core 1.4 GHz Cortex-A53	Quad-core 2.7 GHz Krait 450 - Snapdragon 805 Octa-core (4x1.3 GHz Cortex-A53 & 4x1.9 GHz Cortex-A57) - Exynos 5433
GPU	Adreno 308	Adreno 420 (Snapdragon 805) Mali-T760 MP6 (Exynos 5433)

Memory
Card slot	microSDXC (uses shared SIM slot)	microSDXC (dedicated slot)
Internal	16GB 2GB RAM, 32GB 2GB RAM, 32GB 3GB RAM	32GB 3GB RAM
	eMMC 5.1	eMMC 5.0

Main Camera
Modules	13 MP, f/2.2, AF	16 MP, f/2.2, 31mm (standard), 1/2.6", 1.12µm, AF, OIS
Features	LED flash, HDR, panorama	LED flash, panorama, HDR
Video	1080p@30fps	4K@30fps, 1080p@30/60fps, stereo sound rec.

Selfie Camera
Modules	5 MP, f/2.2	3.7 MP, f/1.9, 22mm (wide)
Features		HDR
Video		1440p@30fps

Sound
Loudspeaker	Yes	Yes
3.5mm jack	Yes	Yes
		24-bit/192kHz audio

Comms
WLAN	Wi-Fi 802.11 b/g/n, Wi-Fi Direct	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth	4.1, A2DP, LE	4.1, A2DP, EDR, LE
Positioning	GPS, GLONASS, BDS	GPS, GLONASS, BDS
NFC	No	Yes
Infrared port	Yes	Yes
Radio	FM radio	No
USB	microUSB 2.0	microUSB 2.0 (MHL 3 TV-out), OTG

Features
Sensors	Accelerometer, gyro, proximity	Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer, gesture, UV, heart rate, SpO2
		ANT+ S-Voice natural language commands and dictation Air gestures

Battery
Type	Li-Ion 3120 mAh, non-removable	Li-Ion 3220 mAh, removable
Charging		15W wired, QC2
Talk time		Up to 20 h (3G)
Music play		Up to 82 h

Misc
Colors	Gold, Rose Gold, Dark Gray	Frosted white, Charcoal black, Bronze Gold, Blossom Pink
SAR	0.53 W/kg (head)     1.18 W/kg (body)	0.37 W/kg (head)     0.88 W/kg (body)
SAR EU		0.37 W/kg (head)     0.38 W/kg (body)
Models	2016117	SM-N910C, SM-N910S, SM-N910H, SM-N910F, SM-N910G, SM-N910U, SM-N910K, SM-N916S, SM-N910L, SM-N916L, SM-N916K, SM-N910T3
Price	About 110 EUR	About 350 EUR

Tests
Performance	GeekBench: 1781 (v4.4)	Basemark OS II 2.0: 1328 Basemark X: 18684
Display		Contrast ratio: Infinity (nominal), 4.033 (sunlight)
Camera	Compare PHOTO / Compare VIDEO
Loudspeaker		Voice 79dB / Noise 74dB / Ring 89dB
Audio quality		Noise -96.6dB / Crosstalk -94.2dB
Battery (old)		Endurance rating 90h