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Specifications

	Compare with Asus Zenfone 4 Pro ZS551KL	Compare with Samsung Galaxy J7 Pro
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Asus Zenfone 4 Pro ZS551KL

Samsung Galaxy J7 Pro

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 (dual-SIM model only)
3G Network	HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network	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, 20, 28, 38, 40, 41, 66
	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 (3CA) Cat12 600/150 or 100 Mbps	HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps

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

Body
Dimensions	156.9 x 75.6 x 7.6 mm (6.18 x 2.98 x 0.30 in)	152.5 x 74.8 x 8 mm (6.00 x 2.94 x 0.31 in)
Weight	175 g (6.17 oz)	181 g (6.38 oz)
Build	Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame	Glass front, aluminum back, aluminum frame
SIM	Hybrid Dual SIM (Nano-SIM, dual stand-by)	Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)

Display
Type	AMOLED	Super AMOLED
Size	5.5 inches, 83.4 cm² (~70.3% screen-to-body ratio)	5.5 inches, 83.4 cm² (~73.1% screen-to-body ratio)
Resolution	1080 x 1920 pixels, 16:9 ratio (~401 ppi density)	1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Protection	Corning Gorilla Glass 5
		Always-on display

Platform
OS	Android 7.1.1 (Nougat), upgradable to Android 8 (Oreo), ZenUI 4	Android 7.0 (Nougat), upgradable to Android 9.0 (Pie), One UI
Chipset	Qualcomm MSM8998 Snapdragon 835 (10 nm)	Exynos 7870 Octa (14 nm)
CPU	Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)	Octa-core 1.6 GHz Cortex-A53
GPU	Adreno 540	Mali-T830 MP1

Memory
Card slot	microSDXC (uses shared SIM slot)	microSDXC (dedicated slot)
Internal	64GB 6GB RAM, 128GB 6GB RAM	16GB 3GB RAM, 32GB 3GB RAM, 64GB 3GB RAM
		eMMC 5.1

Main Camera
Modules	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	13 MP, f/1.7, 27mm (wide), AF
Features	LED flash, HDR, panorama	LED flash, panorama, HDR
Video	4K@30fps, 1080p@30/60fps, 1080p@120fps, 720p@240fps	1080p@30fps

Selfie Camera
Modules	8 MP, f/1.9, 22mm (wide), 1/3.2", 1.4µm, PDAF	13 MP, f/1.9, 28mm (wide), 1/3.1", 1.12µm
Features	HDR	LED flash
Video	1080p@30fps	1080p@30fps

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

Comms
WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth	5.0, A2DP, EDR, LE, aptX	4.1, A2DP, LE
Positioning	GPS, GLONASS, BDS, GALILEO	GPS, GLONASS, BDS
NFC	Yes	Yes
Infrared port	Yes	No
Radio	FM radio	FM radio
USB	USB Type-C 2.0, OTG	microUSB 2.0, OTG

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

Battery
Type	Li-Ion 3600 mAh, non-removable	Li-Ion 3600 mAh, non-removable
Charging	18W wired, 50% in 32 min (advertised)
Talk time	Up to 27 h 30 min (3G)	Up to 24 h (3G)
Music play		Up to 91 h

Misc
Colors	Moonlight white, Pure Black	Black, Blue, Gold, Rose Gold
SAR		0.71 W/kg (head)
SAR EU		0.57 W/kg (head) 1.33 W/kg (body)
Models	Z01GD, Z01GS	SM-J730G, SM-J730GM
Price	About 350 EUR	About 200 EUR

Tests
Performance		GeekBench: 3768 (v4.4) GFXBench: 1.9fps (ES 3.1 onscreen)
Display		Contrast ratio: Infinite (nominal), 3.998 (sunlight)
Loudspeaker		Voice 68dB / Noise 69dB / Ring 82dB
Audio quality		Noise -92.7dB / Crosstalk -92.4dB
Battery (old)		Endurance rating 107h

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