Asus Zenfone 4 Pro ZS551KL

Released 2017, October
175g, 7.6mm thickness
Android 7.1.1, up to Android 8, ZenUI 4
64GB/128GB storage, microSDXC
N/A 1,511,766 hits
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5.5"
1080x1920 pixels
16MP
2160p
6GB RAM
Snapdragon 835
3600mAh
Li-Ion

Network	Technology	GSM / HSPA / LTE
	2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
	3G bands	HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
	4G bands	1, 2, 3, 4, 5, 7, 8, 17, 19, 20, 28, 38, 39, 40, 41 - Global, Taiwan
		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-A (3CA) Cat12 600/150 or 100 Mbps

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

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

Display	Type	AMOLED
	Size	5.5 inches, 83.4 cm² (~70.3% screen-to-body ratio)
	Resolution	1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
	Protection	Corning Gorilla Glass 5

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

Memory	Card slot	microSDXC (uses shared SIM slot)
	Internal	64GB 6GB RAM, 128GB 6GB RAM

Main Camera	Dual	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
	Video	4K@30fps, 1080p@30/60fps, 1080p@120fps, 720p@240fps

Selfie camera	Single	8 MP, f/1.9, 22mm (wide), 1/3.2", 1.4µm, PDAF
	Features	HDR
	Video	1080p@30fps

Sound	Loudspeaker	Yes, dual 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, hotspot
	Bluetooth	5.0, A2DP, EDR, LE, aptX
	GPS	Yes, with A-GPS, GLONASS, BDS, GALILEO
	NFC	Yes
	Infrared port	Yes
	Radio	FM radio
	USB	USB Type-C 2.0, USB On-The-Go

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

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

Misc	Colors	Moonlight white, Pure Black
	Models	Z01GD
	Price	About 350 EUR

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Asus Zenfone 4 Pro ZS551KL - user opinions and reviews

Viqo
gy9
01 Mar 2020

It hasn't an ir port. There're 2 microphone on top. Nothing more

lionel
J6%
04 Oct 2019

this phone is OTG compatible . you can find it on the official web site https://www.asus.com/fr/support/FAQ/1007467/ one of the best phone when see specification with Huawei mate 20 ( infrared stereo NFC )

Ciclista41
g%v
02 Sep 2019

I absolutely agree! I didn't realize I needed that for ease of connection and more solid connections with MetroPCS, and I don't want to switch carriers. Considering another phone even though I really like this phone a lot!