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Nokia N81 vs Oppo Ace2

Compare recorded specifications, size and practical differences.

Nokia N81

Nokia N81

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Oppo Ace2

Oppo Ace2

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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.

  • WeightN81: 46 g lighterN81: 140 g · Ace2: 186 g
  • WidthN81: 25.4 mm narrowerN81: 50 mm · Ace2: 75.4 mm
  • Screen diagonalN81: 4.15 in smaller diagonalN81: 2.4 in · Ace2: 6.55 in
  • Rear camera layoutSingle / QuadN81: Single · Ace2: Quad
  • DepthAce2: 9.3 mm thinnerAce2: 8.6 mm · N81: 17.9 mm
  • HeightN81: 58 mm shorterN81: 102 mm · Ace2: 160 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.

Front
N81: 102 × 50 mm 1 Ace2: 160 × 75.4 mm 2
Side
N81: 102 × 17.9 mm 1 Ace2: 160 × 8.6 mm 2
  1. 1. N81
    Height
    102 mm
    Width
    50 mm
    Depth
    17.9 mm+9.3 mm versus Ace2
    Weight
    140 g
  2. 2. Ace2
    Height
    160 mm+58 mm versus N81
    Width
    75.4 mm+25.4 mm versus N81
    Depth
    8.6 mm
    Weight
    186 g
Weight

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

  1. 1. N81140 g
  2. 2. Ace2186 g

    +46 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.

Screen size
N81: 2.4 in, 4:3, About 17.8 cm² rectangular area 1 Ace2: 6.55 in, 20:9, About 103.6 cm² rectangular area 2
  1. 1. N81 2.4 in · 4:3 About 17.8 cm² rectangular area
  2. 2. Ace2 6.55 in · 20:9 About 103.6 cm² rectangular area

Ace2 has approximately 480.7% 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 by storage capacity and phone
StorageN81Ace2
128 GB Unknown 8 GB RAM
256 GB Unknown 8 / 12 GB RAMAlternative RAM configurations
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. Ace2

NFC
Yes
Headphone jack
No
Memory card support
No

Battery capacity

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

Recorded capacity

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

  1. 1. N811050 mAh
  2. 2. Ace24000 mAh

    +2950 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. Ace2

Everyday essentials
Everyday essentials
SpecificationN81Ace2
Dimensions (HxWxD)
  • 102 Х 50 Х 17.9 mm
  • 160 Х 75.4 Х 8.6 mm
Weight
  • 140 g
  • 186 g
Technology
  • TFT
  • AMOLED
Screen size
  • 2.4" inch
  • 6.55" inch
Screen resolution
  • 240 x 320 px
  • 1080 x 2400 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 12 MB
  • 96 MB RAM
  • 128GB 8GB RAM
  • 256GB 8GB RAM
  • 256GB 12GB RAM
Memory card support
  • microSD
  • up to 8 GB (dedicated slot)
  • 2 GB included
  • No
BatteryCapacity is not battery life. No endurance test is implied.
  • 1050 mAh
  • Removable Li-Po
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Symbian OS 9.2
  • Series 60 v3.1 UI
  • Android 10.0; ColorOS 7.1
Chipset Unknown
  • Qualcomm SM8250 Snapdragon 865 (7 nm+)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • No
Display
Display
SpecificationN81Ace2
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 17.8 cm2
  • 103.6 cm2
Screen format
  • 4:3 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 35.0%
  • 85.9%
PPI /points per inch/
  • 167 PPI
  • 402 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video
SpecificationN81Ace2
Rear camera, main
  • 2 MP
  • Single
  • 48 MP
  • Quad
Camera specs
  • 2 MP
  • 48 MP
  • f/1.7
  • 26mm (wide)
  • 1/2.0''
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0''
  • 1.12µm
  • AF -2 MP B/W
  • (depth) -2 MP
  • (depth)
Functions
  • LED flash
  • HDR
Video
  • 320p@15fps
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 16 MP
  • Single
Specifications
  • CIF videocall camera
  • 16 MP
  • f/2.4
  • 29mm (wide)
  • 1/3.1''
  • 1.0µm
Performance
Performance
SpecificationN81Ace2
Processor CPU
  • 369 MHz ARM 11
  • Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.8 GHz Kryo 585)
Graphics processor GPU Unknown
  • Adreno 650
General specs
General specs
SpecificationN81Ace2
Release date
  • 2007
  • August
  • 2020
  • April 13
Colors
  • Cobalt blue
  • Graphite Grey
  • Aurora Silver
  • Moon Rock Grey
  • Fantasy Purple
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
  • 200 EUR
  • 520 EUR
Battery life
  • Stand by time- Up to 410 h Talking time- Up to 4 h (2G) / 3 h (3G)
Unknown
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • aluminum frame
Communication and Connectivity
Communication and Connectivity
SpecificationN81Ace2
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2CDMA 800 / 1900 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 20(800)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - China -5G - 5G band 1(2100)
  • 41(2500)
  • 78(3500)
  • 79(4700); SA/NSA - China
Speed
  • Yes
  • 384 kbps
  • HSPA
  • LTE-A
GPRS
  • Class 10
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g with UPnP
  • Wi-Fi 802.11 a/b/g/n/ac/ax
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with dual-band A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 2.0
  • A2DP
  • 5.1
  • A2DP
  • LE
  • aptX HD
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
SpecificationN81Ace2
Radio
  • Stereo FM radio
Unknown
Others
  • Touch-sensitive Navi wheel
  • 500 nits typ. brightness (advertised) -HDR10+ -90Hz refresh rate
Other features
Other features
SpecificationN81Ace2
Dop
  • MP3/AAC/MP4 player -Predictive text input -Push to talk -Voice dial/memo -Organizer
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 65W
  • 100% in 30 min (advertised) -SuperVOOC 2.0 -Fast wireless charging 40W
  • 100% in 56 min (advertised) -Wireless reverse charging 10W