Asus Zenfone 2 ZE551ML vs Asus Zenfone Selfie ZD551KL

Phones Images

PHONES
Phone Names	Asus Zenfone 2 ZE551ML	Asus Zenfone Selfie ZD551KL

Network
2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands	HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100
4G bands	1, 2, 3, 4, 5, 8, 9, 18, 19, 28 - Taiwan	1, 2, 3, 5, 7, 8, 20 - Global
Speed	HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps	HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE
	-	1, 3 - India

Launch
Announced	2015, January. Released 2015, March	2015, June. Released 2015, August
Status	Discontinued	Discontinued

Body
Build	Glass front (Gorilla Glass 3), plastic back, plastic frame	Glass front (Gorilla Glass 4), plastic back, plastic frame
Dimensions	152.5 x 77.2 x 10.9 mm (6.00 x 3.04 x 0.43 in)	156.5 x 77.2 x 10.8 mm (6.16 x 3.04 x 0.43 in)
SIM	Dual SIM (Micro-SIM, dual stand-by)	Dual SIM (Micro-SIM, dual stand-by)
Weight	170 g (6.00 oz)	170 g (6.00 oz)

Display
Protection	Corning Gorilla Glass 3	Corning Gorilla Glass 4, oleophobic coating
Resolution	1080 x 1920 pixels, 16:9 ratio (~401 ppi density)	1080 x 1920 pixels, 16:9 ratio (~403 ppi density)
Size	5.5 inches, 83.4 cm2 (~70.8% screen-to-body ratio)	5.5 inches, 82.6 cm2 (~68.3% screen-to-body ratio)
Type	IPS LCD	IPS LCD

Platform
CPU	Quad-core 2.3 GHz (4 GB RAM model)Quad-core 1.8 GHz (2 GB RAM model)	Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Chipset	Intel Atom Z3580 (4 GB RAM model)Intel Atom Z3560 (2 GB RAM model)	Qualcomm MSM8939 Snapdragon 615 (28 nm)
GPU	PowerVR G6430	Adreno 405
OS	Android 5.0 (Lollipop), upgradable to 6.0 (Marshmallow)	Android 5.0 (Lollipop), upgradable to 6.0 (Marshmallow), ZenUI

Memory
Card slot	microSDXC (dedicated slot)	microSDXC (dedicated slot)
Internal	16GB 2GB RAM, 32GB 2GB RAM, 32GB 4GB RAM, 64GB 4GB RAM, 128GB 4GB RAM	16GB 2GB RAM, 32GB 3GB RAM
	-	eMMC 4.5

Main Camera
Features	Dual-LED dual-tone flash, panorama, HDR	Laser AF, Dual-LED dual-tone flash, panorama, HDR
Single	13 MP, f/2.0, AF	13 MP, f/2.0, 28mm (wide), 1/3.0"
Video	1080p@30fps	1080p@30fps

Selfie camera
Features	-	Dual-LED dual-tone flash
Single	5 MP, f/2.0	13 MP, f/2.2, 1/3.1", 1.12µm, AF
Video	-	1080p@30fps

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

Comms
Bluetooth	4.0, A2DP, EDR	4.0, A2DP, EDR
NFC	Yes	No
Positioning	GPS, GLONASS	GPS, GLONASS, BDS
Radio	FM radio, RDS	FM radio, RDS
USB	microUSB 2.0, OTG	microUSB 2.0, OTG
WLAN	Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot	Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot

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

Battery
Charging	18W wired, 60% in 40 min	-
Type	Li-Po 3000 mAh, non-removable	Li-Po 3000 mAh, removable

Misc
Colors	Osmium Black, Sheer Gold, Glacier Gray, Glamor Red, Ceramic White	Pure White, Chic Pink, Aqua Blue
Models	Z00AD, Z00A	Z00UD, Z00UDH, Z00UDC, Z00UDB
Price	About 300 EUR	About 280 EUR
SAR EU	0.35 W/kg (head)	-

Tests
Audio quality	-	Noise -92.1dB / Crosstalk -92.5dB
Battery life	Endurance rating 59h	Endurance rating 63h
Camera	Photo / Video	Photo / Video
Display	-	Contrast ratio: 928:1 (nominal), 1.680 (sunlight)
Loudspeaker	Voice 62dB / Noise 61dB / Ring 67dB	Voice 65dB / Noise 66dB / Ring 75dB
Performance	Basemark OS II 2.0: 1090Basemark X: 12565	Basemark OS II 2.0: 883Basemark X: 4915

OUR TESTS
Audio quality	-	Noise -92.1dB / Crosstalk -92.5dB
Battery (old)	Endurance rating 59h	Endurance rating 63h
Camera	Photo / Video	Photo / Video
Display	-	Contrast ratio: 928:1 (nominal), 1.680 (sunlight)
Loudspeaker	Voice 62dB / Noise 61dB / Ring 67dB	Voice 65dB / Noise 66dB / Ring 75dB
Performance	Basemark OS II 2.0: 1090Basemark X: 12565	Basemark OS II 2.0: 883Basemark X: 4915