Asus Zenfone 4 Pro ZS551KL vs Google Pixel: specs comparison

Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

Weight

Pixel: 32 g lighter

Zenfone 4 Pro ZS551KL:

175 g

Pixel:

143 g
Width

Pixel: 6.1 mm narrower

Zenfone 4 Pro ZS551KL:

75.6 mm

Pixel:

69.5 mm
Screen diagonal

Pixel: 0.5 in smaller diagonal

Zenfone 4 Pro ZS551KL:

5.5 in

Pixel:

5 in
Chipset

Zenfone 4 Pro ZS551KL:

Qualcomm MSM8998 Snapdragon 835 (10 nm)

Pixel:

Qualcomm MSM8996 Snapdragon 821 (14 nm)
Rear camera layout

Zenfone 4 Pro ZS551KL:

Dual

Pixel:

Single
Depth

Zenfone 4 Pro ZS551KL: 0.9 mm thinner

Zenfone 4 Pro ZS551KL:

7.6 mm

Pixel:

8.5 mm

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

1. Zenfone 4 Pro ZS551KL

Height:

156.9 mm +13.1 mm versus Pixel
Width:

75.6 mm +6.1 mm versus Pixel
Depth:

7.6 mm
2. Pixel

Height:

143.8 mm
Width:

69.5 mm
Depth:

8.5 mm +0.9 mm versus Zenfone 4 Pro ZS551KL

Weight

Bars start at zero and share a scale within this chart.

1. Zenfone 4 Pro ZS551KL

175 g

+32 g versus Pixel
2. Pixel

143 g

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

1. Zenfone 4 Pro ZS551KL

Screen diagonal:

5.5 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

83.4 cm²
2. Pixel

Screen diagonal:

5 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

68.9 cm²

Zenfone 4 Pro ZS551KL has approximately 21% more rectangular screen area than Pixel.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM for Zenfone 4 Pro ZS551KL, Pixel, compared at the same storage capacity.
Storage	Zenfone 4 Pro ZS551KL	Pixel
64 GB	6 GB RAM	Unknown
128 GB	6 GB RAM	Unknown

Pixel: Original memory entry

32/128 GB · 512GB 4GB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Zenfone 4 Pro ZS551KL

NFC:: Yes
Headphone jack:: Yes
Memory card support:: See details microSD · up to 512 GB (uses SIM 2 slot)

2. Pixel

NFC:: Yes
Headphone jack:: Yes
Memory card support:: No

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

1. Zenfone 4 Pro ZS551KL

3600 mAh

+830 mAh versus Pixel
2. Pixel

2770 mAh

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. Zenfone 4 Pro ZS551KL2. Pixel

Everyday essentials

Everyday essentials — specifications for Zenfone 4 Pro ZS551KL, Pixel.
Specification	Zenfone 4 Pro ZS551KL	Pixel
Dimensions (HxWxD)	156.9 Х 75.6 Х 7.6 mm	143.8 Х 69.5 Х 8.5 mm
Weight	175 g	143 g
Technology	AMOLED	AMOLED
Screen size	5.5" inch	5" inch
Screen resolution	1080 x 1920 px	1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	64/128 GB 6 GB RAM	32/128 GB 512GB 4GB
Memory card support	microSD up to 512 GB (uses SIM 2 slot)	No
Battery Capacity is not battery life. No endurance test is implied.	3600 mAh Non-removable Li-Ion	2770 mAh Non-removable Li-Ion
Operating system OS	Android 7.1.1 (Nougat) upgradable to Android 8 (Oreo); ZenUI 4	Android 7.1 (Nougat) upgradable to Android 9.0 (Pie)
Chipset	Qualcomm MSM8998 Snapdragon 835 (10 nm)	Qualcomm MSM8996 Snapdragon 821 (14 nm)
NFC	Yes	Yes
Headphone jack	Yes	Yes

Display

Display — specifications for Zenfone 4 Pro ZS551KL, Pixel.
Specification	Zenfone 4 Pro ZS551KL	Pixel
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	83.4 cm2	68.9 cm2
Screen format	16:9 (height:width)	16:9 (height:width)
Screen to body ratio	70.3%	69.0%
PPI /points per inch/	401 PPI	441 PPI
Screen protection	Corning Gorilla Glass 5	Corning Gorilla Glass 4

Camera and Video

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Camera and Video — specifications for Zenfone 4 Pro ZS551KL, Pixel.
Specification	Zenfone 4 Pro ZS551KL	Pixel
Rear camera, main	12 MP Dual	12.3 MP Single
Camera specs	12 MP f/1.7 25mm (wide) 1/2.55'' 1.4µm 4-axis OIS dual pixel PDAF & laser AF -16 MP 50mm (telephoto) 1/3.1'' 1.0µm 2x optical zoom AF	12.3 MP f/2.0 1/2.3'' 1.55µm PDAF & laser AF
Functions	HDR	Dual-LED flash HDR panorama
Video	1080p@30fps	1080p@30fps
Front camera, selfie	8 MP Single	8 MP Single
Specifications	8 MP f/1.9 1/3.2'' 22mm (wide) 1.4µm PDAF	8 MP f/2.4 1/3.2'' 1.4µm
DxOMark Main Score *	Unknown	90
DxOMark Photo *	Unknown	90
DxOMark Video *	Unknown	91

Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for Zenfone 4 Pro ZS551KL, Pixel.
Specification	Zenfone 4 Pro ZS551KL	Pixel
Processor CPU	Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)	Quad-core (2x2.15 GHz Kryo & 2x1.6 GHz Kryo)
Graphics processor GPU	Adreno 540	Adreno 530
Antutu 7 score *	Unknown	145789
GeekBench 4 Single Core *	Unknown	1626
GeekBench 4 Multi-Core *	Unknown	4014
GeekBench 4 RenderScript *	Unknown	7705
GeekBench 4 Battery *	Unknown	1738
GeekBench 5 Single Core *	Unknown	307
GeekBench 5 Multi-Core *	Unknown	848

General specs

General specs — specifications for Zenfone 4 Pro ZS551KL, Pixel.
Specification	Zenfone 4 Pro ZS551KL	Pixel
Release date	2017 August	2016 October
Colors	Moonlight White Pure Black	Quite Black Very Silver Really Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	390 EUR	290 EUR
Battery life	Talking time- Up to 27 h 30 min (3G)	Stand by time- Up to 456 h (3G) Talking time- Up to 26 h (3G) Music play - Up to 110 h
Body build	Front/back glass (Gorilla Glass 5) & aluminum frame	Front glass aluminum body partial glass back

Communication and Connectivity

Communication and Connectivity — specifications for Zenfone 4 Pro ZS551KL, Pixel.
Specification	Zenfone 4 Pro ZS551KL	Pixel
SIM card	Hybrid Dual SIM (Nano-SIM dual stand-by)	Nano-SIM
Network	Show all network frequencies: -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) 12(700) 18(800) 26(850) 29(700) 30(2300) 41(2500) - US Canada Brazil LTE band 1(2100) 41(2500) - India	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100) 2(1900) 3(1800) 4(1700/2100) 5(850) 7(2600) 8(900) 12(700) 13(700) 17(700) 18(800) 19(800) 20(800) 21(1500) 26(850) 28(700) 32(1500) 38(2600) 39(1900) 40(2300) 41(2500)
Speed	HSPA 42.2/5.76 Mbps LTE-A (3CA) Cat12 600/150 or 100 Mbps	HSPA 42.2/5.76 Mbps LTE-A (3CA) Cat9 450/50 Mbps or LTE-A (3CA) Cat11 600/75 Mbps
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 a/b/g/n/ac dual-band WiFi Direct hotspot	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct DLNA hotspot
GPS	Yes with A-GPS GLONASS BDS GALILEO	Yes with A-GPS GLONASS
USB	Type-C 1.0 reversible connector	3.0 Type-C 1.0 reversible connector
Bluetooth	5.0 A2DP EDR LE aptX	4.2 A2DP LE aptX
Harmful irradiation	Unknown	SAR - 0.92 W/kg (head) 0.58 W/kg (body) SAR EU - 0.33 W/kg (head) 0.61 W/kg (body)

Music and Audio

Music and Audio — specifications for Zenfone 4 Pro ZS551KL, Pixel.
Specification	Zenfone 4 Pro ZS551KL	Pixel
Radio	FM radio	No
Others	24-bit/192kHz audio -DTS sound -Active noise cancellation with dedicated mic	Active noise cancellation with dedicated mic

Other features

Other features — specifications for Zenfone 4 Pro ZS551KL, Pixel.
Specification	Zenfone 4 Pro ZS551KL	Pixel
Dop	Sensors Fingerprint (front-mounted) accelerometer gyro proximity compass color spectrum Infrared port - Fast battery charging: 50% in 32 min	Sensors Fingerprint (rear-mounted) accelerometer gyro proximity compass barometer - Fast battery charging - Splash and dust resistant - Versions: Global USA North America

Asus Zenfone 4 Pro ZS551KL vs Google Pixel