Acer M900 vs Nokia X71

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    X71: 8 g lighter

    M900:
    188 g
    X71:
    180 g
  • Width

    M900: 14.5 mm narrower

    M900:
    62 mm
    X71:
    76.5 mm
  • Screen diagonal

    M900: 2.59 in smaller diagonal

    M900:
    3.8 in
    X71:
    6.39 in
  • Rear camera layout

    M900:
    Single
    X71:
    Triple
  • Depth

    X71: 9.1 mm thinner

    M900:
    17.1 mm
    X71:
    8 mm
  • Height

    M900: 38.2 mm shorter

    M900:
    119 mm
    X71:
    157.2 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. M900

    Height:
    119 mm
    Width:
    62 mm
    Depth:
    17.1 mm +9.1 mm versus X71
  2. 2. X71

    Height:
    157.2 mm +38.2 mm versus M900
    Width:
    76.5 mm +14.5 mm versus M900
    Depth:
    8 mm

Weight

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

  1. 1. M900

    188 g

    +8 g versus X71

  2. 2. X71

    180 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. M900

    Screen diagonal:
    3.8 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    41.1 cm²
  2. 2. X71

    X71: Screen geometry unavailable or conflicting.

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 M900, X71, compared at the same storage capacity.
StorageM900X71
128 GB Unknown 6 GB RAM
M900: Original memory entry

Super AMOLED

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. M900

NFC:
See details Super AMOLED
Headphone jack:
See details panorama
Memory card support:
See details microSD (dedicated slot)

2. X71

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. M900

    1530 mAh

  2. 2. X71

    3500 mAh

    +1970 mAh versus M900

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. M9002. X71

Everyday essentials
Everyday essentials — specifications for M900, X71.
SpecificationM900X71
Dimensions (HxWxD)
  • 119 Х 62 Х 17.1 mm
  • 157.2 Х 76.5 Х 8 mm
Weight
  • 188 g
  • 180 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.8" inch
  • 6.39" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 2316 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • Super AMOLED
  • 128 GB
  • 6 GB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1530 mAh
  • Removable Li-Ion
  • 3500 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 9.0 (Pie); Android One
Chipset Unknown
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • panorama
  • Yes
Display
Display — specifications for M900, X71.
SpecificationM900X71
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 41.1 cm2
  • 100.9 cm2
Screen format
  • 5:3 (height:width)
Unknown
Screen to body ratio
  • 55.7%
  • 83.9%
PPI /points per inch/
  • 246 PPI
  • 0 PPI
Camera and Video
Camera and Video — specifications for M900, X71.
SpecificationM900X71
Rear camera, main
  • 5 MP
  • Single
  • 48 MP
  • Triple
Camera specs
  • 5 MP
  • AF
  • 48 MP
  • f/1.8
  • 1/2''
  • 0.8µm
  • PDAF -8 MP
  • 13mm (ultrawide) -5 MP
  • f/2.4
  • depth sensor
Functions
  • Dual-LED flash
  • Zeiss optics
  • Dual-LED flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 16 MP
  • Single
Specifications
  • VGA videocall camera
  • 16 MP
  • f/2.0
Performance

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

Performance — specifications for M900, X71.
SpecificationM900X71
Processor CPU
  • 533 MHz Samsung S3C 6410
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU Unknown
  • Adreno 512
Antutu 7 score * Unknown
  • 142562
GeekBench 4 Single Core * Unknown
  • 1455
GeekBench 4 Multi-Core * Unknown
  • 5075
General specs
General specs — specifications for M900, X71.
SpecificationM900X71
Release date
  • 2009
  • February
  • 2019
  • April
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 250 EUR
  • 290 EUR
Battery life
  • Stand by time- Up to 470 h Talking time- Up to 4 h
Unknown
Body build Unknown
  • Front/back glass
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for M900, X71.
SpecificationM900X71
SIM card
  • Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE
  • 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)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/2 Mbps
  • HSPA
  • LTE-A
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • SiRF Star III chipset
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • miniUSB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • microUSB 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
  • aptX
Harmful irradiation
  • SAR - 0.43 W/kg (head) 0.92 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for M900, X71.
SpecificationM900X71
Radio
  • FM radio
Unknown
Others
  • Handwriting recognition
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for M900, X71.
SpecificationM900X71
Dop
  • Sensors Fingerprint (front-mounted) Pocket Office -Voice memo -MP3 player -Predictive text input
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 18W - For China