Asus Zenfone 4 Pro ZS551KL vs BLU Studio One: 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.

Display technology

OLED versus LCD

Zenfone 4 Pro ZS551KL:

OLED

Studio One:

LCD
Weight

Studio One: 28 g lighter

Zenfone 4 Pro ZS551KL:

175 g

Studio One:

147 g
Width

Studio One: 4.6 mm narrower

Zenfone 4 Pro ZS551KL:

75.6 mm

Studio One:

71 mm
Screen diagonal

Studio One: 0.5 in smaller diagonal

Zenfone 4 Pro ZS551KL:

5.5 in

Studio One:

5 in
Chipset

Zenfone 4 Pro ZS551KL:

Qualcomm MSM8998 Snapdragon 835 (10 nm)

Studio One:

Mediatek MT6735 (28 nm)
Rear camera layout

Zenfone 4 Pro ZS551KL:

Dual

Studio One:

Single

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 +15.4 mm versus Studio One
Width:

75.6 mm +4.6 mm versus Studio One
Depth:

7.6 mm
2. Studio One

Height:

141.5 mm
Width:

71 mm
Depth:

7.6 mm

Weight

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

1. Zenfone 4 Pro ZS551KL

175 g

+28 g versus Studio One
2. Studio One

147 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. Studio One

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 Studio One.

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, Studio One, compared at the same storage capacity.
Storage	Zenfone 4 Pro ZS551KL	Studio One
16 GB	Not recorded	2 GB RAM
64 GB	6 GB RAM	Not recorded
128 GB	6 GB RAM	Not recorded

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. Studio One

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSD · up to 64 GB

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

+1150 mAh versus Studio One
2. Studio One

2450 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. Studio One

Everyday essentials

Everyday essentials — specifications for Zenfone 4 Pro ZS551KL, Studio One.
Specification	Zenfone 4 Pro ZS551KL	Studio One
Dimensions (HxWxD)	156.9 Х 75.6 Х 7.6 mm	141.5 Х 71 Х 7.6 mm
Weight	175 g	147 g
Technology	AMOLED	IPS LCD
Screen size	5.5" inch	5" inch
Screen resolution	1080 x 1920 px	720 x 1280 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 2 GB RAM
Memory card support	microSD up to 512 GB (uses SIM 2 slot)	microSD up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.	3600 mAh Non-removable Li-Ion	2450 mAh Non-removable Li-Po
Operating system OS	Android 7.1.1 (Nougat) upgradable to Android 8 (Oreo); ZenUI 4	Android 5.1 (Lollipop)
Chipset	Qualcomm MSM8998 Snapdragon 835 (10 nm)	Mediatek MT6735 (28 nm)
NFC	Yes	Unknown
Headphone jack	Yes	Yes

Display

Display — specifications for Zenfone 4 Pro ZS551KL, Studio One.
Specification	Zenfone 4 Pro ZS551KL	Studio One
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%	68.6%
PPI /points per inch/	401 PPI	294 PPI
Screen protection	Corning Gorilla Glass 5	Unknown

Camera and Video

Camera and Video — specifications for Zenfone 4 Pro ZS551KL, Studio One.
Specification	Zenfone 4 Pro ZS551KL	Studio One
Rear camera, main	12 MP Dual	13 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	13 MP f/2.0 1/3'' AF
Functions	HDR	LED flash panorama HDR
Video	1080p@30fps	1080p@30fps
Front camera, selfie	8 MP Single	5 MP Single
Specifications	8 MP f/1.9 1/3.2'' 22mm (wide) 1.4µm PDAF	5 MP

Performance

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

Performance — specifications for Zenfone 4 Pro ZS551KL, Studio One.
Specification	Zenfone 4 Pro ZS551KL	Studio One
Processor CPU	Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)	Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU	Adreno 540	Mali-T720
Antutu 7 score *	Unknown	32789
GeekBench 4 Single Core *	Unknown	573
GeekBench 4 Multi-Core *	Unknown	1555

General specs

General specs — specifications for Zenfone 4 Pro ZS551KL, Studio One.
Specification	Zenfone 4 Pro ZS551KL	Studio One
Release date	2017 August	2016 February
Colors	Moonlight White Pure Black	Black Grey White Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	390 EUR	Unknown
Battery life	Talking time- Up to 27 h 30 min (3G)	Stand by time- Up to 725 h (2G) / Up to 625 h (3G) Talking time- Up to 26 h (2G) / Up to 16 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, Studio One.
Specification	Zenfone 4 Pro ZS551KL	Studio One
SIM card	Hybrid Dual SIM (Nano-SIM dual stand-by)	Dual SIM (Micro-SIM dual stand-by)
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 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1700(AWS) / 1900 / 2100 - S0110UU HSDPA 900 / 2100 - S0110EE -4G - LTE band 2(1900) 4(1700/2100) 7(2600) 12(700) 17(700) - S0110UU LTE band 3(1800) 20(800) 38(2600) 40(2300) - S0110EE
Speed	HSPA 42.2/5.76 Mbps LTE-A (3CA) Cat12 600/150 or 100 Mbps	HSPA 42.2/11.5 Mbps LTE Cat4 150/50 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 b/g/n
GPS	Yes with A-GPS GLONASS BDS GALILEO	Yes with A-GPS
USB	Type-C 1.0 reversible connector	microUSB 2.0
Bluetooth	5.0 A2DP EDR LE aptX	4.0 A2DP

Music and Audio

Music and Audio — specifications for Zenfone 4 Pro ZS551KL, Studio One.
Specification	Zenfone 4 Pro ZS551KL	Studio One
Radio	FM radio	FM radio
Others	24-bit/192kHz audio -DTS sound -Active noise cancellation with dedicated mic	Unknown

Other features

Other features — specifications for Zenfone 4 Pro ZS551KL, Studio One.
Specification	Zenfone 4 Pro ZS551KL	Studio One
Dop	Sensors Fingerprint (front-mounted) accelerometer gyro proximity compass color spectrum Infrared port - Fast battery charging: 50% in 32 min	Sensors Accelerometer proximity compass

Asus Zenfone 4 Pro ZS551KL vs BLU Studio One