Asus Zenfone 4 Pro ZS551KL	Device 2
Launch
Announced	2017, August
Status	Available. Released 2017, October
Network
Technology	GSM / HSPA / LTE
2G	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2;
3G	HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 ;
4G	LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 19(800), 20(800), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) - Global, Taiwan;LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 41(2500) - US, Canada, Brazil;LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500) - India;
Speed	HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat12 600/150 or 100 Mbps
GPRS	Yes
Edge	Yes
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)
SIM	Hybrid Dual SIM (Nano-SIM, dual stand-by)
Build	Front/back glass (Gorilla Glass 5) & aluminum frame
Display
Type	AMOLED capacitive touchscreen, 16M colors
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	microSD, up to 512 GB (uses SIM 2 slot)
Internal	64/128 GB, 6 GB RAM
Camera
Features	LED flash, HDR, panorama
Video	HDR
Secondary	12 MP, f/1.7, 25mm (wide), 1/2.55", 1.4µm, 4-axis OIS, dual pixel PDAF & laser AF_x000D_ 16 MP, 50mm (telephoto), 1/3.1", 1.0µm, 2x optical zoom, AF
Sound
Loudspeaker	Yes, dual speakers
3.5mm Jack	Yes
Others	24-bit/192kHz audio_x000D_ DTS sound_x000D_ Active noise cancellation with dedicated mic
Comms
WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
Bluetooth	5.0, A2DP, EDR, LE, aptX
GPS	Yes, with A-GPS, GLONASS, BDS, GALILEO
NFC	Yes
Radio	FM radio
USB	Type-C 1.0 reversible connector
Features
Sensors	Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, color spectrum
Battery
Battery	Non-removable Li-Ion 3600 mAh battery
Talk time	Up to 27 h 30 min (3G)
Misc
Colors	Moonlight white, Pure Black
Price group	About 390 EUR

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