Asus Zenfone Go ZB551KL vs Vodafone Smart first 7

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

    Smart first 7: 50 g lighter

    Zenfone Go ZB551KL:
    160 g
    Smart first 7:
    110 g
  • Width

    Smart first 7: 14.1 mm narrower

    Zenfone Go ZB551KL:
    76.9 mm
    Smart first 7:
    62.8 mm
  • Screen diagonal

    Smart first 7: 2 in smaller diagonal

    Zenfone Go ZB551KL:
    5.5 in
    Smart first 7:
    3.5 in
  • Chipset

    Zenfone Go ZB551KL:
    Qualcomm MSM8928 Snapdragon 400 (28 nm)
    Smart first 7:
    Spreadtrum SC7731G
  • Depth

    Zenfone Go ZB551KL: 1.3 mm thinner

    Zenfone Go ZB551KL:
    10.7 mm
    Smart first 7:
    12 mm
  • Height

    Smart first 7: 36.6 mm shorter

    Zenfone Go ZB551KL:
    151 mm
    Smart first 7:
    114.4 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. 1. Zenfone Go ZB551KL

    Height:
    151 mm +36.6 mm versus Smart first 7
    Width:
    76.9 mm +14.1 mm versus Smart first 7
    Depth:
    10.7 mm
  2. 2. Smart first 7

    Height:
    114.4 mm
    Width:
    62.8 mm
    Depth:
    12 mm +1.3 mm versus Zenfone Go ZB551KL

Weight

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

  1. 1. Zenfone Go ZB551KL

    160 g

    +50 g versus Smart first 7

  2. 2. Smart first 7

    110 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 Go ZB551KL

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. Smart first 7

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²

Zenfone Go ZB551KL has approximately 128.6% more rectangular screen area than Smart first 7.

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 Go ZB551KL, Smart first 7, compared at the same storage capacity.
StorageZenfone Go ZB551KLSmart first 7
16 GB 2 GB RAM Unknown
32 GB 2 GB RAM Unknown
Smart first 7: Original memory entry

4 GB · 512 MB 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 Go ZB551KL

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

2. Smart first 7

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. 1. Zenfone Go ZB551KL

    3010 mAh

    +1610 mAh versus Smart first 7

  2. 2. Smart first 7

    1400 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 Go ZB551KL2. Smart first 7

Everyday essentials
Everyday essentials — specifications for Zenfone Go ZB551KL, Smart first 7.
SpecificationZenfone Go ZB551KLSmart first 7
Dimensions (HxWxD)
  • 151 Х 76.9 Х 10.7 mm
  • 114.4 Х 62.8 Х 12 mm
Weight
  • 160 g
  • 110 g
Technology
  • IPS LCD
  • TFT TN
Screen size
  • 5.5" inch
  • 3.5" inch
Screen resolution
  • 720 x 1280 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16/32 GB
  • 2 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 64 GB (dedicated slot)
  • microSD
  • up to 64 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3010 mAh
  • Removable Li-Ion
  • 1400 mAh
  • Removable Li-Ion
Operating system OS
  • Android 5.1 (Lollipop)
  • Android 5.1 (Lollipop)
Chipset
  • Qualcomm MSM8928 Snapdragon 400 (28 nm)
  • Spreadtrum SC7731G
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone Go ZB551KL, Smart first 7.
SpecificationZenfone Go ZB551KLSmart first 7
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 83.4 cm2
  • 36.5 cm2
Screen format
  • 16:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 71.8%
  • 50.8%
PPI /points per inch/
  • 267 PPI
  • 165 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Zenfone Go ZB551KL, Smart first 7.
SpecificationZenfone Go ZB551KLSmart first 7
Rear camera, main
  • 8 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 8 MP or 13 MP
  • AF
  • f/2.0
  • 2 MP
Functions
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Unknown
Video
  • 1080p@30fps
  • 720p@30fps
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 Go ZB551KL, Smart first 7.
SpecificationZenfone Go ZB551KLSmart first 7
Processor CPU
  • Quad-core 1.6 GHz Cortex-A7
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU
  • Adreno 305
  • Mali-400MP2
Antutu 7 score *
  • 23458
Unknown
General specs
General specs — specifications for Zenfone Go ZB551KL, Smart first 7.
SpecificationZenfone Go ZB551KLSmart first 7
Release date
  • 2016
  • April
  • 2016
  • May
Colors
  • Charcoal Black
  • Pearl White
  • Lake Blue
  • Glacier Gray
  • Sheer Gold
  • Glamour Red
  • Floral Pink
  • Silver Blue
  • Volcano Black
  • Tech White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 30 EUR
Battery life
  • Stand by time- Up to 335 h (3G) Talking time- Up to 16 h (3G)
  • Talking time- Up to 5 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone Go ZB551KL, Smart first 7.
SpecificationZenfone Go ZB551KLSmart first 7
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800) - Global LTE band 1(2100)
  • 5(850) - India
  • Show all network frequencies: -2G - GSM 900 / 1800
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • A-GPS only
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 2.1
  • A2DP
Music and Audio
Music and Audio — specifications for Zenfone Go ZB551KL, Smart first 7.
SpecificationZenfone Go ZB551KLSmart first 7
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Zenfone Go ZB551KL, Smart first 7.
SpecificationZenfone Go ZB551KLSmart first 7
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors No