Asus Zenfone 4 Pro ZS551KL vs Nokia E90: 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

Zenfone 4 Pro ZS551KL: 35 g lighter

Zenfone 4 Pro ZS551KL:

175 g

E90:

210 g
Width

E90: 18.6 mm narrower

Zenfone 4 Pro ZS551KL:

75.6 mm

E90:

57 mm
Screen diagonal

E90: 1.5 in smaller diagonal

Zenfone 4 Pro ZS551KL:

5.5 in

E90:

4 in
Rear camera layout

Zenfone 4 Pro ZS551KL:

Dual

E90:

Single
Depth

Zenfone 4 Pro ZS551KL: 12.4 mm thinner

Zenfone 4 Pro ZS551KL:

7.6 mm

E90:

20 mm
Height

E90: 24.9 mm shorter

Zenfone 4 Pro ZS551KL:

156.9 mm

E90:

132 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 +24.9 mm versus E90
Width:

75.6 mm +18.6 mm versus E90
Depth:

7.6 mm
2. E90

Height:

132 mm
Width:

57 mm
Depth:

20 mm +12.4 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
2. E90

210 g

+35 g versus Zenfone 4 Pro ZS551KL

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.

At least two phones need compatible screen dimensions for a drawing.

1. Zenfone 4 Pro ZS551KL

Screen diagonal:

5.5 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

83.4 cm²
2. E90

E90: Screen geometry unavailable or conflicting.

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, E90, compared at the same storage capacity.
Storage	Zenfone 4 Pro ZS551KL	E90
64 GB	6 GB RAM	Unknown
128 GB	6 GB RAM	Unknown

E90: Original memory entry

128 MB

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. E90

NFC:: Unknown
Headphone jack:: No
Memory card support:: See details microSD · up to 16 GB (dedicated slot)

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

+2100 mAh versus E90
2. E90

1500 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. E90

Everyday essentials

Everyday essentials — specifications for Zenfone 4 Pro ZS551KL, E90.
Specification	Zenfone 4 Pro ZS551KL	E90
Dimensions (HxWxD)	156.9 Х 75.6 Х 7.6 mm	132 Х 57 Х 20 mm
Weight	175 g	210 g
Technology	AMOLED	TFT
Screen size	5.5" inch	4" inch
Screen resolution	1080 x 1920 px	800 x 352 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	128 MB
Memory card support	microSD up to 512 GB (uses SIM 2 slot)	microSD up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.	3600 mAh Non-removable Li-Ion	1500 mAh Removable Li-Ion
Operating system OS	Android 7.1.1 (Nougat) upgradable to Android 8 (Oreo); ZenUI 4	Symbian 9.2 S60 rel. 3.1
Chipset	Qualcomm MSM8998 Snapdragon 835 (10 nm)	Unknown
NFC	Yes	Unknown
Headphone jack	Yes	No

Display

Display — specifications for Zenfone 4 Pro ZS551KL, E90.
Specification	Zenfone 4 Pro ZS551KL	E90
Touchscreen	capacitive touchscreen	Unknown
Display colors	16M	16M
Screen area	83.4 cm2	38.1 cm2
Screen format	16:9 (height:width)	Unknown
Screen to body ratio	70.3%	50.6%
PPI /points per inch/	401 PPI	0 PPI
Screen protection	Corning Gorilla Glass 5	Unknown

Camera and Video

Camera and Video — specifications for Zenfone 4 Pro ZS551KL, E90.
Specification	Zenfone 4 Pro ZS551KL	E90
Rear camera, main	12 MP Dual	3.15 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	3.15 MP AF
Functions	HDR	LED flash
Video	1080p@30fps	Yes
Front camera, selfie	8 MP Single	0.3 MP Single
Specifications	8 MP f/1.9 1/3.2'' 22mm (wide) 1.4µm PDAF	QCIF videocall camera

Performance

Performance — specifications for Zenfone 4 Pro ZS551KL, E90.
Specification	Zenfone 4 Pro ZS551KL	E90
Processor CPU	Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)	330 MHz
Graphics processor GPU	Adreno 540	Unknown

General specs

General specs — specifications for Zenfone 4 Pro ZS551KL, E90.
Specification	Zenfone 4 Pro ZS551KL	E90
Release date	2017 August	2007 February
Colors	Moonlight White Pure Black	Red Mocha
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	390 EUR	400 EUR
Battery life	Talking time- Up to 27 h 30 min (3G)	Stand by time- Up to 330 h Talking time- Up to 5 h
Body build	Front/back glass (Gorilla Glass 5) & aluminum frame	Unknown

Communication and Connectivity

Communication and Connectivity — specifications for Zenfone 4 Pro ZS551KL, E90.
Specification	Zenfone 4 Pro ZS551KL	E90
SIM card	Hybrid Dual SIM (Nano-SIM dual stand-by)	Mini-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
Speed	HSPA 42.2/5.76 Mbps LTE-A (3CA) Cat12 600/150 or 100 Mbps	HSPA 3.6/0.384 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 802.11b/g
GPS	Yes with A-GPS GLONASS BDS GALILEO	Yes with A-GPS; Nokia Maps
USB	Type-C 1.0 reversible connector	miniUSB 2.0
Bluetooth	5.0 A2DP EDR LE aptX	2.0 A2DP
Harmful irradiation	Unknown	SAR - 0.59 W/kg (head) 0.72 W/kg (body) SAR EU - 0.65 W/kg (head)

Music and Audio

Music and Audio — specifications for Zenfone 4 Pro ZS551KL, E90.
Specification	Zenfone 4 Pro ZS551KL	E90
Radio	FM radio	FM radio
Others	24-bit/192kHz audio -DTS sound -Active noise cancellation with dedicated mic	Second external 16M colors display (240 x 320 pixels) 2 inches -Downloadable themes

Other features

Other features — specifications for Zenfone 4 Pro ZS551KL, E90.
Specification	Zenfone 4 Pro ZS551KL	E90
Dop	Sensors Fingerprint (front-mounted) accelerometer gyro proximity compass color spectrum Infrared port - Fast battery charging: 50% in 32 min	Infrared port - Push to talk -WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Voice command/dial -Organizer -Printing -Document editor (Word Excel PowerPoint PDF) incl. MS Office 2007 support via free update -Photo/video editor

Asus Zenfone 4 Pro ZS551KL vs Nokia E90