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Asus Zenfone 4 Max ZC554KL

Asus Zenfone 4 Pro ZS551KL

Network
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE
2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network	HSDPA 850 / 900 / 1900 / 2100	HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
	HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 - USA, Canada
4G Network	1, 3, 5, 7, 8, 20, 40	1, 2, 3, 4, 5, 7, 8, 17, 19, 20, 28, 38, 39, 40, 41 - Global, Taiwan
	1, 2, 3, 4, 5, 7, 8, 17, 18, 19, 26, 28, 38, 41 - USA, Canada	1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 29, 30, 38, 39, 41 - US, Canada, Brazil
		1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 29, 30, 38, 39, 40, 41 - India
Speed	HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps	HSPA 42.2/5.76 Mbps, LTE (3CA) Cat12 600/150 or 100 Mbps

Launch
Announced	2017, July	2017, August
Status	Available. Released 2017, September	Available. Released 2017, October

Body
Dimensions	154 x 76.9 x 8.9 mm (6.06 x 3.03 x 0.35 in)	156.9 x 75.6 x 7.6 mm (6.18 x 2.98 x 0.30 in)
Weight	181 g (6.38 oz)	175 g (6.17 oz)
Build	Glass front (Gorilla Glass), aluminum back, aluminum frame	Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
SIM	Dual SIM (Nano-SIM, dual stand-by)	Hybrid Dual SIM (Nano-SIM, dual stand-by)

Display
Type	S-IPS LCD	AMOLED
Size	5.5 inches, 83.4 cm2 (~70.4% screen-to-body ratio)	5.5 inches, 83.4 cm2 (~70.3% screen-to-body ratio)
Resolution	720 x 1280 pixels, 16:9 ratio (~267 ppi density)	1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Protection	Corning Gorilla Glass (unspecified version)	Corning Gorilla Glass 5

Platform
OS	Android 7 (Nougat), ZenUI 4	Android 7.1.1 (Nougat), upgradable to Android 8 (Oreo), ZenUI 4
Chipset	Qualcomm MSM8937 Snapdragon 430 (28 nm)	Qualcomm MSM8998 Snapdragon 835 (10 nm)
CPU	Octa-core 1.4 GHz Cortex-A53	Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
GPU	Adreno 505	Adreno 540

Memory
Card slot	microSDXC (dedicated slot)	microSDXC (uses shared SIM slot)
Internal	32GB 3GB RAM	64GB 6GB RAM, 128GB 6GB RAM
	eMMC 5.1

Main Camera
Modules	13 MP, f/2.0, 25mm (wide), AF 13 MP, f/2.0, 12mm, no AF	12 MP, f/1.7, 25mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, Laser AF, 4-axis OIS 16 MP, 50mm (telephoto), 1/3.1", 1.0µm, AF, 2x optical zoom
Features	LED flash, HDR, panorama	LED flash, HDR, panorama
Video	1080p@30fps	4K@30fps, 1080p@30/60fps, 1080p@120fps, 720p@240fps

Selfie Camera
Modules	8 MP, f/2.2, 24mm (wide)	8 MP, f/1.9, 22mm (wide), 1/3.2", 1.4µm, PDAF
Features	LED flash	HDR
Video		1080p@30fps

Sound
Loudspeaker	Yes	Yes, dual speakers
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
Bluetooth	4.1, A2DP, LE	5.0, A2DP, EDR, LE, aptX
Positioning	GPS, GLONASS, BDS	GPS, GLONASS, BDS, GALILEO
NFC	No	Yes
Infrared port	No	Yes
Radio	FM radio	FM radio
USB	microUSB 2.0, OTG	USB Type-C 2.0, OTG

Features
Sensors	Fingerprint (front-mounted), accelerometer, gyro, proximity, compass	Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, color spectrum

Battery
Type	Li-Po 5000 mAh, non-removable	Li-Ion 3600 mAh, non-removable
Charging	10W wired Reverse wired	18W wired, 50% in 32 min (advertised)
Talk time		Up to 27 h 30 min (3G)

Misc
Colors	Titanium Gray, Rose Pink, Sand Gold, Deepsea Black	Moonlight white, Pure Black
Models	X00ID, X00IS, X00HDA, ZC554KL	Z01GD, Z01GS
Price	About 270 EUR	About 350 EUR