Asus Zenfone Zoom ZX551ML vs Sendo X2: 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

X2: 90 g lighter

Zenfone Zoom ZX551ML:

185 g

X2:

95 g
Screen diagonal

X2: 3.3 in smaller diagonal

Zenfone Zoom ZX551ML:

5.5 in

X2:

2.2 in
Chipset

Zenfone Zoom ZX551ML:

Intel Atom Z3590

X2:

TI OMAP 5910
Release year

Zenfone Zoom ZX551ML:

2015

X2:

2005

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 Zoom ZX551ML

Height:

158.9 mm
Width:

78.8 mm
Depth:

12 mm
2. X2

Height:

Unknown
Width:

Unknown
Depth:

Unknown

Unavailable dimensions are omitted from the drawing.

Weight

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

1. Zenfone Zoom ZX551ML

185 g

+90 g versus X2
2. X2

95 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.

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

1. Zenfone Zoom ZX551ML

Screen diagonal:

5.5 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

83.4 cm²
2. X2

X2: 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Zenfone Zoom ZX551ML: Original memory entry

32/64/128 GB · 512GB 4GB

X2: Original memory entry

32 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 Zoom ZX551ML

NFC:: Yes
Headphone jack:: Yes
Memory card support:: See details microSD · up to 256 GB (dedicated slot)

2. X2

NFC:: Unknown
Headphone jack:: No
Memory card support:: See details miniSD

Battery capacity

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

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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 Zoom ZX551ML2. X2

Everyday essentials

Everyday essentials — specifications for Zenfone Zoom ZX551ML, X2.
Specification	Zenfone Zoom ZX551ML	X2
Dimensions (HxWxD)	158.9 Х 78.8 Х 12 mm	Х Х mm
Weight	185 g	95 g
Technology	IPS LCD	TFT
Screen size	5.5" inch	2.2" inch
Screen resolution	1080 x 1920 px	176 x 220 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	32/64/128 GB 512GB 4GB	32 MB
Memory card support	microSD up to 256 GB (dedicated slot)	miniSD
Battery Capacity is not battery life. No endurance test is implied.	3000 mAh Non-removable Li-Po	0 mAh,
Operating system OS	Android 5.0 (Lollipop) upgradable to 6.0 (Marshmallow); ZenUI	Symbian Series 60 UI
Chipset	Intel Atom Z3590	TI OMAP 5910
NFC	Yes	Unknown
Headphone jack	Yes	No

Display

Display — specifications for Zenfone Zoom ZX551ML, X2.
Specification	Zenfone Zoom ZX551ML	X2
Touchscreen	capacitive touchscreen	Unknown
Display colors	16M	65K
Screen area	83.4 cm2	15.2 cm2
Screen format	16:9 (height:width)	Unknown
Screen to body ratio	66.6%	Unknown
PPI /points per inch/	401 PPI	0 PPI
Screen protection	Corning Gorilla Glass 4	Unknown

Camera and Video

Camera and Video — specifications for Zenfone Zoom ZX551ML, X2.
Specification	Zenfone Zoom ZX551ML	X2
Rear camera, main	13 MP Single	1.3 MP Single
Camera specs	13 MP f/2.7-4.8 28(wide)-84mm(telephoto) 3x optical zoom OIS laser AF	1.3 MP
Functions	Dual-LED dual-tone flash panorama HDR	Unknown
Video	1080p@30fps	Yes
Front camera, selfie	5 MP Single	0 MP,
Specifications	5 MP f/2.0	Unknown

Performance

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

Performance — specifications for Zenfone Zoom ZX551ML, X2.
Specification	Zenfone Zoom ZX551ML	X2
Processor CPU	Quad-core 2.5 GHz	120 MHz ARM925T
Graphics processor GPU	PowerVR G6430	Unknown
Antutu 7 score *	57145	Unknown

General specs

General specs — specifications for Zenfone Zoom ZX551ML, X2.
Specification	Zenfone Zoom ZX551ML	X2
Release date	2015 September	2005 Q1
Colors	Pure Black Ceramic White	Unknown
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	250 EUR	Unknown

Communication and Connectivity

Communication and Connectivity — specifications for Zenfone Zoom ZX551ML, X2.
Specification	Zenfone Zoom ZX551ML	X2
SIM card	Micro-SIM	Mini-SIM
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100) 2(1900) 3(1800) 5(850) 7(2600) 8(900) 9(1800) 18(800) 19(800) 28(700)	Unknown
Speed	HSPA 42.2/5.76 Mbps LTE Cat4+ 250/50 Mbps	Unknown
GPRS	Yes	Yes
Edge	Yes	No
Wi-Fi	Wi-Fi 802.11 a/b/g/n/ac Wi-Fi Direct hotspot	No
GPS	Yes with A-GPS GLONASS BDS	No
USB	microUSB 2.0	Proprietary
Bluetooth	4.0 A2DP EDR	Yes

Music and Audio

Music and Audio — specifications for Zenfone Zoom ZX551ML, X2.
Specification	Zenfone Zoom ZX551ML	X2
Radio	No	No

Other features

Other features — specifications for Zenfone Zoom ZX551ML, X2.
Specification	Zenfone Zoom ZX551ML	X2
Dop	Sensors Accelerometer gyro proximity compass - Fast battery charging: 60% in 40 min - For Europe	Infrared port - Photo editor -AAC/MP3 player -SyncML

Asus Zenfone Zoom ZX551ML vs Sendo X2