Asus Zenfone 3 Ultra ZU680KL vs Nokia E51

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

    E51: 133 g lighter

    Zenfone 3 Ultra ZU680KL:
    233 g
    E51:
    100 g
  • Width

    E51: 47.9 mm narrower

    Zenfone 3 Ultra ZU680KL:
    93.9 mm
    E51:
    46 mm
  • Screen diagonal

    E51: 4.8 in smaller diagonal

    Zenfone 3 Ultra ZU680KL:
    6.8 in
    E51:
    2 in
  • Depth

    Zenfone 3 Ultra ZU680KL: 5.2 mm thinner

    Zenfone 3 Ultra ZU680KL:
    6.8 mm
    E51:
    12 mm
  • Height

    E51: 71.6 mm shorter

    Zenfone 3 Ultra ZU680KL:
    186.4 mm
    E51:
    114.8 mm
  • Release year

    Zenfone 3 Ultra ZU680KL:
    2016
    E51:
    2007

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 3 Ultra ZU680KL

    Height:
    186.4 mm +71.6 mm versus E51
    Width:
    93.9 mm +47.9 mm versus E51
    Depth:
    6.8 mm
  2. 2. E51

    Height:
    114.8 mm
    Width:
    46 mm
    Depth:
    12 mm +5.2 mm versus Zenfone 3 Ultra ZU680KL

Weight

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

  1. 1. Zenfone 3 Ultra ZU680KL

    233 g

    +133 g versus E51

  2. 2. E51

    100 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 3 Ultra ZU680KL

    Screen diagonal:
    6.8 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    127.5 cm²
  2. 2. E51

    Screen diagonal:
    2 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    12.4 cm²

Zenfone 3 Ultra ZU680KL has approximately 929.1% more rectangular screen area than E51.

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 3 Ultra ZU680KL: Original memory entry

32/64/128 GB · 3/4 GB RAM

E51: Original memory entry

130 MB · 96 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 3 Ultra ZU680KL

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 slot)

2. E51

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 16 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 3 Ultra ZU680KL

    4600 mAh

    +3550 mAh versus E51

  2. 2. E51

    1050 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 3 Ultra ZU680KL2. E51

Everyday essentials
Everyday essentials — specifications for Zenfone 3 Ultra ZU680KL, E51.
SpecificationZenfone 3 Ultra ZU680KLE51
Dimensions (HxWxD)
  • 186.4 Х 93.9 Х 6.8 mm
  • 114.8 Х 46 Х 12 mm
Weight
  • 233 g
  • 100 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.8" inch
  • 2" inch
Screen resolution
  • 1080 x 1920 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32/64/128 GB
  • 3/4 GB RAM
  • 130 MB
  • 96 MB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4600 mAh
  • Non-removable Li-Ion
  • 1050 mAh
  • Removable Li-Ion
Operating system OS
  • Android 6.1 (Marshmallow); ZenUI 3
  • Symbian OS 9.2
  • Series 60 v3.1 UI
Chipset
  • Qualcomm MSM8976 Snapdragon 652 (28 nm)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Zenfone 3 Ultra ZU680KL, E51.
SpecificationZenfone 3 Ultra ZU680KLE51
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 16M
Screen area
  • 127.5 cm2
  • 12.4 cm2
Screen format
  • 16:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 72.8%
  • 23.5%
PPI /points per inch/
  • 324 PPI
  • 200 PPI
Screen protection
  • Corning Gorilla Glass 4
Unknown
Camera and Video
Camera and Video — specifications for Zenfone 3 Ultra ZU680KL, E51.
SpecificationZenfone 3 Ultra ZU680KLE51
Rear camera, main
  • 23 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 23 MP
  • f/2.0
  • 1/2.6''
  • 1.0µm
  • 4-axis OIS
  • PDAF & laser AF
  • 2 MP
Functions
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Unknown
Video
  • 1080p@30fps
  • 320p@15fps
Front camera, selfie
  • 8 MP
  • Single
  • 0 MP,
Specifications
  • 8 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 3 Ultra ZU680KL, E51.
SpecificationZenfone 3 Ultra ZU680KLE51
Processor CPU
  • Octa-core (4x1.8 GHz Cortex-A72 & 4x1.4 GHz Cortex-A53)
  • 369 MHz ARM 11
Graphics processor GPU
  • Adreno 510
Unknown
GeekBench 4 Single Core *
  • 1357
Unknown
GeekBench 4 Multi-Core *
  • 3659
Unknown
GeekBench 4 RenderScript *
  • 4146
Unknown
GeekBench 5 Single Core *
  • 252
Unknown
GeekBench 5 Multi-Core *
  • 899
Unknown
General specs
General specs — specifications for Zenfone 3 Ultra ZU680KL, E51.
SpecificationZenfone 3 Ultra ZU680KLE51
Release date
  • 2016
  • May
  • 2007
  • September
Colors
  • Glacier Silver
  • Titanium Gray
  • Metallic Pink
  • Black
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 300 EUR
  • 120 EUR
Battery life
  • Talking time- Up to 34 h (3G)
  • Stand by time- Up to 310 h Talking time- Up to 4 h 20 min
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone 3 Ultra ZU680KL, E51.
SpecificationZenfone 3 Ultra ZU680KLE51
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 850 / 900 / 1900 / 2100 / 800 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 18(800)
  • 19(800)
  • 20(800)
  • 26(850)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA 3.6/0.384 Mbps
GPRS
  • Yes
  • Class 32
Edge
  • Yes
  • Class 32
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11b/g
  • VoIP over WLAN
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • No
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • miniUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • EDR
  • LE
  • 2.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 1.38 W/kg (head) 0.75 W/kg (body) SAR EU - 1.47 W/kg (head)
Music and Audio
Music and Audio — specifications for Zenfone 3 Ultra ZU680KL, E51.
SpecificationZenfone 3 Ultra ZU680KLE51
Radio
  • FM radio
  • FM radio
Others
  • 24-bit/192kHz audio
  • Five-way scroll key -Downloadable themes
  • 2.5 mm audio jack
Other features
Other features — specifications for Zenfone 3 Ultra ZU680KL, E51.
SpecificationZenfone 3 Ultra ZU680KLE51
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 60% in 45 min (Quick Charge 3.0)
  • Infrared port - Push to talk -WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Document viewer (Word
  • Excel
  • PowerPoint
  • PDF) incl. MS Office 2007 support via free update -Predictive text input -Voice command/memo -Organizer