Nokia N81 vs Oppo A53

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

    N81: 25 g lighter

    N81:
    140 g
    A53:
    165 g
  • Width

    N81: 27 mm narrower

    N81:
    50 mm
    A53:
    77 mm
  • Screen diagonal

    N81: 3.1 in smaller diagonal

    N81:
    2.4 in
    A53:
    5.5 in
  • Depth

    A53: 10.5 mm thinner

    N81:
    17.9 mm
    A53:
    7.4 mm
  • Height

    N81: 51 mm shorter

    N81:
    102 mm
    A53:
    153 mm
  • Release year

    N81:
    2007
    A53:
    2015

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. N81

    Height:
    102 mm
    Width:
    50 mm
    Depth:
    17.9 mm +10.5 mm versus A53
  2. 2. A53

    Height:
    153 mm +51 mm versus N81
    Width:
    77 mm +27 mm versus N81
    Depth:
    7.4 mm

Weight

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

  1. 1. N81

    140 g

  2. 2. A53

    165 g

    +25 g versus N81

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. N81

    Screen diagonal:
    2.4 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    17.8 cm²
  2. 2. A53

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

A53 has approximately 367.5% more rectangular screen area than N81.

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 N81, A53, compared at the same storage capacity.
StorageN81A53
16 GB Unknown 2 GB RAM
N81: Original memory entry

12 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. N81

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 8 GB (dedicated slot) · 2 GB included

2. A53

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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. N81

    1050 mAh

  2. 2. A53

    3075 mAh

    +2025 mAh versus N81

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. N812. A53

Everyday essentials
Everyday essentials — specifications for N81, A53.
SpecificationN81A53
Dimensions (HxWxD)
  • 102 Х 50 Х 17.9 mm
  • 153 Х 77 Х 7.4 mm
Weight
  • 140 g
  • 165 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.4" inch
  • 5.5" inch
Screen resolution
  • 240 x 320 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 12 MB
  • 96 MB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 8 GB (dedicated slot)
  • 2 GB included
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1050 mAh
  • Removable Li-Po
  • 3075 mAh
  • Non-removable Li-Ion
Operating system OS
  • Symbian OS 9.2
  • Series 60 v3.1 UI
  • Android 5.1 (Lollipop); ColorOS 2.1
Chipset Unknown
  • Qualcomm MSM8939v2 Snapdragon 616 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for N81, A53.
SpecificationN81A53
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 17.8 cm2
  • 83.4 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 35.0%
  • 70.8%
PPI /points per inch/
  • 167 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for N81, A53.
SpecificationN81A53
Rear camera, main
  • 2 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 2 MP
  • 13 MP
  • AF
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • 320p@15fps
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • CIF videocall camera
  • 5 MP
Performance

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

Performance — specifications for N81, A53.
SpecificationN81A53
Processor CPU
  • 369 MHz ARM 11
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Adreno 405
Antutu 7 score * Unknown
  • 34155
GeekBench 4 Single Core * Unknown
  • 677
GeekBench 4 Multi-Core * Unknown
  • 2734
General specs
General specs — specifications for N81, A53.
SpecificationN81A53
Release date
  • 2007
  • August
  • 2015
  • November
Colors
  • Cobalt blue
  • Graphite Grey
  • White/Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 200 EUR
  • 200 EUR
Battery life
  • Stand by time- Up to 410 h Talking time- Up to 4 h (2G) / 3 h (3G)
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for N81, A53.
SpecificationN81A53
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Nano-SIM/ Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA -4G - LTE band 1(2100)
  • 3(1800)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • Yes
  • 384 kbps
  • HSPA
  • LTE
GPRS
  • Class 10
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g with UPnP
  • Wi-Fi 802.11 b/g/n
GPS
  • No
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 2.0
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation
  • SAR - 0.73 W/kg (head) 0.60 W/kg (body) SAR EU - 0.81 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for N81, A53.
SpecificationN81A53
Radio
  • Stereo FM radio
  • FM radio
Others
  • Touch-sensitive Navi wheel
Unknown
Other features
Other features — specifications for N81, A53.
SpecificationN81A53
Dop
  • MP3/AAC/MP4 player -Predictive text input -Push to talk -Voice dial/memo -Organizer
  • Sensors Accelerometer
  • proximity
  • compass