Asus Zenfone 4 Pro ZS551KL vs Nokia E7: 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.

Width

E7: 13.2 mm narrower

Zenfone 4 Pro ZS551KL:

75.6 mm

E7:

62.4 mm
Screen diagonal

E7: 1.5 in smaller diagonal

Zenfone 4 Pro ZS551KL:

5.5 in

E7:

4 in
Rear camera layout

Zenfone 4 Pro ZS551KL:

Dual

E7:

Single
Depth

Zenfone 4 Pro ZS551KL: 6 mm thinner

Zenfone 4 Pro ZS551KL:

7.6 mm

E7:

13.6 mm
Height

E7: 33.2 mm shorter

Zenfone 4 Pro ZS551KL:

156.9 mm

E7:

123.7 mm
Release year

Zenfone 4 Pro ZS551KL:

2017

E7:

2010

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 +33.2 mm versus E7
Width:

75.6 mm +13.2 mm versus E7
Depth:

7.6 mm
2. E7

Height:

123.7 mm
Width:

62.4 mm
Depth:

13.6 mm +6 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. E7

176 g

+1 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.

1. Zenfone 4 Pro ZS551KL

Screen diagonal:

5.5 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

83.4 cm²
2. E7

Screen diagonal:

4 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

44.1 cm²

Zenfone 4 Pro ZS551KL has approximately 89.1% more rectangular screen area than E7.

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, E7, compared at the same storage capacity.
Storage	Zenfone 4 Pro ZS551KL	E7
64 GB	6 GB RAM	Unknown
128 GB	6 GB RAM	Unknown

E7: Original memory entry

16 GB · 256 MB RAM · 1 GB ROM

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. E7

NFC:: Unknown
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

+2400 mAh versus E7
2. E7

1200 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. E7

Everyday essentials

Everyday essentials — specifications for Zenfone 4 Pro ZS551KL, E7.
Specification	Zenfone 4 Pro ZS551KL	E7
Dimensions (HxWxD)	156.9 Х 75.6 Х 7.6 mm	123.7 Х 62.4 Х 13.6 mm
Weight	175 g	176 g
Technology	AMOLED	AMOLED
Screen size	5.5" inch	4" inch
Screen resolution	1080 x 1920 px	360 x 640 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	16 GB 256 MB RAM 1 GB ROM
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	1200 mAh Non-removable Li-Ion
Operating system OS	Android 7.1.1 (Nougat) upgradable to Android 8 (Oreo); ZenUI 4	Symbian^3 upgradable to Nokia Belle OS
Chipset	Qualcomm MSM8998 Snapdragon 835 (10 nm)	Unknown
NFC	Yes	Unknown
Headphone jack	Yes	Yes

Display

Display — specifications for Zenfone 4 Pro ZS551KL, E7.
Specification	Zenfone 4 Pro ZS551KL	E7
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	83.4 cm2	44.1 cm2
Screen format	16:9 (height:width)	16:9 (height:width)
Screen to body ratio	70.3%	57.1%
PPI /points per inch/	401 PPI	184 PPI
Screen protection	Corning Gorilla Glass 5	Corning Gorilla Glass

Camera and Video

Camera and Video — specifications for Zenfone 4 Pro ZS551KL, E7.
Specification	Zenfone 4 Pro ZS551KL	E7
Rear camera, main	12 MP Dual	8 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	8 MP
Functions	HDR	Dual-LED flash
Video	1080p@30fps	720p@25fps 720p@30fps (via SW update)
Front camera, selfie	8 MP Single	0.3 MP Single
Specifications	8 MP f/1.9 1/3.2'' 22mm (wide) 1.4µm PDAF	VGA

Performance

Performance — specifications for Zenfone 4 Pro ZS551KL, E7.
Specification	Zenfone 4 Pro ZS551KL	E7
Processor CPU	Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)	680 MHz ARM 11
Graphics processor GPU	Adreno 540	Broadcom BCM2727

General specs

General specs — specifications for Zenfone 4 Pro ZS551KL, E7.
Specification	Zenfone 4 Pro ZS551KL	E7
Release date	2017 August	2010 September
Colors	Moonlight White Pure Black	Dark Grey Silver White Green Blue Orange
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	390 EUR	150 EUR
Battery life	Talking time- Up to 27 h 30 min (3G)	Stand by time- Up to 432 h (2G) / Up to 480 h (3G) Talking time- Up to 9 h (2G) / Up to 5 h (3G)
Body build	Front/back glass (Gorilla Glass 5) & aluminum frame	Unknown

Communication and Connectivity

Communication and Connectivity — specifications for Zenfone 4 Pro ZS551KL, E7.
Specification	Zenfone 4 Pro ZS551KL	E7
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 10.2/2 Mbps
GPRS	Yes	Class 32
Edge	Yes	Class 32
Wi-Fi	Wi-Fi 802.11 a/b/g/n/ac dual-band WiFi Direct hotspot	Wi-Fi 802.11 b/g/n
GPS	Yes with A-GPS GLONASS BDS GALILEO	Yes with A-GPS; Ovi Maps 3.0
USB	Type-C 1.0 reversible connector	microUSB 2.0 USB Host
Bluetooth	5.0 A2DP EDR LE aptX	3.0 A2DP
Harmful irradiation	Unknown	SAR - 0.93 W/kg (head) 1.23 W/kg (body) SAR EU - 0.56 W/kg (head)

Music and Audio

Music and Audio — specifications for Zenfone 4 Pro ZS551KL, E7.
Specification	Zenfone 4 Pro ZS551KL	E7
Radio	FM radio	Stereo FM radio RDS
Others	24-bit/192kHz audio -DTS sound -Active noise cancellation with dedicated mic	Nokia ClearBlack display Active noise cancellation with dedicated mic

Other features

Other features — specifications for Zenfone 4 Pro ZS551KL, E7.
Specification	Zenfone 4 Pro ZS551KL	E7
Dop	Sensors Fingerprint (front-mounted) accelerometer gyro proximity compass color spectrum Infrared port - Fast battery charging: 50% in 32 min	Sensors Accelerometer proximity compass - TV-out (720p video) via HDMI and composite -Dolby Digital Plus via HDMI -MP3/WAV/eAAC+/WMA player -MP4/H.264/WMV player -Voice command/dial -Document editor (Word Excel PowerPoint PDF) -Video/photo editor -Voice memo/dial -Predictive text input

Asus Zenfone 4 Pro ZS551KL vs Nokia E7