Asus Zenfone 2 ZE551ML vs Lava Z61

Compare recorded specifications, size and practical differences.

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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

    Z61: 31 g lighter

    Zenfone 2 ZE551ML:
    170 g
    Z61:
    139 g
  • Width

    Z61: 7 mm narrower

    Zenfone 2 ZE551ML:
    77.2 mm
    Z61:
    70.2 mm
  • Chipset

    Zenfone 2 ZE551ML:
    Intel Atom Z3580 (4 GB RAM model) -Intel Atom Z3560 (2 GB RAM model)
    Z61:
    Mediatek MT6739WW (28 nm)
  • Depth

    Z61: 2.2 mm thinner

    Zenfone 2 ZE551ML:
    10.9 mm
    Z61:
    8.7 mm
  • Height

    Z61: 6 mm shorter

    Zenfone 2 ZE551ML:
    152.5 mm
    Z61:
    146.5 mm
  • Release year

    Zenfone 2 ZE551ML:
    2015
    Z61:
    2018

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. 1. Zenfone 2 ZE551ML

    Height:
    152.5 mm +6 mm versus Z61
    Width:
    77.2 mm +7 mm versus Z61
    Depth:
    10.9 mm +2.2 mm versus Z61
  2. 2. Z61

    Height:
    146.5 mm
    Width:
    70.2 mm
    Depth:
    8.7 mm

Weight

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

  1. 1. Zenfone 2 ZE551ML

    170 g

    +31 g versus Z61

  2. 2. Z61

    139 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. 1. Zenfone 2 ZE551ML

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. Z61

    Screen diagonal:
    5.45 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    76.7 cm²

Zenfone 2 ZE551ML has approximately 8.8% more rectangular screen area than Z61.

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 2 ZE551ML: Original memory entry

16/32/64 GB · 2/4 GB RAM

Z61: Original memory entry

16 GB · 1/2 GB RAM

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 2 ZE551ML

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

2. Z61

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. 1. Zenfone 2 ZE551ML

    3000 mAh

  2. 2. Z61

    3000 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 2 ZE551ML2. Z61

Everyday essentials
Everyday essentials — specifications for Zenfone 2 ZE551ML, Z61.
SpecificationZenfone 2 ZE551MLZ61
Dimensions (HxWxD)
  • 152.5 Х 77.2 Х 10.9 mm
  • 146.5 Х 70.2 Х 8.7 mm
Weight
  • 170 g
  • 139 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 5.45" inch
Screen resolution
  • 1080 x 1920 px
  • 720 x 1440 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16/32/64 GB
  • 2/4 GB RAM
  • 16 GB
  • 1/2 GB RAM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Po
  • 3000 mAh
  • Removable Li-Po
Operating system OS
  • Android 5.0 (Lollipop)
  • upgradable to 6.0 (Marshmallow)
  • Android 8.0 Oreo (Go edition) - 1 GB RAM modelAndroid 8.1 (Oreo) - 2 GB RAM model
Chipset
  • Intel Atom Z3580 (4 GB RAM model) -Intel Atom Z3560 (2 GB RAM model)
  • Mediatek MT6739WW (28 nm)
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone 2 ZE551ML, Z61.
SpecificationZenfone 2 ZE551MLZ61
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 76.7 cm2
Screen format
  • 16:9 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 70.8%
  • 74.5%
PPI /points per inch/
  • 401 PPI
  • 295 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for Zenfone 2 ZE551ML, Z61.
SpecificationZenfone 2 ZE551MLZ61
Rear camera, main
  • 13 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 13 MP
  • AF
  • f/2.0
  • 8 MP
  • f/2.0
  • 1.12µm
  • AF
Functions
  • Dual-LED dual-tone flash
  • panorama
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 5 MP
  • f/2.0
  • 5 MP
  • f/2.4
Performance

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

Performance — specifications for Zenfone 2 ZE551ML, Z61.
SpecificationZenfone 2 ZE551MLZ61
Processor CPU
  • Quad-core 2.3 GHz (4 GB RAM model) -Quad-core 1.8 GHz (2 GB RAM model)
  • Quad-core 1.5 GHz Cortex-A53
Graphics processor GPU
  • PowerVR G6430
  • PowerVR GE8100
Antutu 7 score *
  • 50232
  • 35202
General specs
General specs — specifications for Zenfone 2 ZE551ML, Z61.
SpecificationZenfone 2 ZE551MLZ61
Release date
  • 2015
  • January
  • 2018
  • July
Colors
  • Osmium Black
  • Sheer Gold
  • Glacier Gray
  • Glamor Red
  • Ceramic White
  • Gold
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 300 EUR
  • 5700 INR
Body build
  • plastic body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone 2 ZE551ML, Z61.
SpecificationZenfone 2 ZE551MLZ61
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM/Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA - China & India -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 9(1800)
  • 18(800)
  • 19(800)
  • 28(700) - Taiwan LTE band 1(2100)
  • 7(2600)
  • 20(800) - Global LTE band 1(2100)
  • 17(700)
  • 20(800) - US LTE band 1(2100)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - China & India
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.35 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for Zenfone 2 ZE551ML, Z61.
SpecificationZenfone 2 ZE551MLZ61
Radio
  • FM radio
  • RDS
  • FM radio
Other features
Other features — specifications for Zenfone 2 ZE551ML, Z61.
SpecificationZenfone 2 ZE551MLZ61
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 60% in 40 min
  • Sensors Accelerometer
  • proximity - For India