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Acer DX900 vs LG K40S

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.

  • Width

    DX900: 13.4 mm narrower

    DX900:
    60.5 mm
    K40S:
    73.9 mm
  • Screen diagonal

    DX900: 3.3 in smaller diagonal

    DX900:
    2.8 in
    K40S:
    6.1 in
  • Rear camera layout

    DX900:
    Single
    K40S:
    Dual
  • Depth

    K40S: 8.4 mm thinner

    DX900:
    17 mm
    K40S:
    8.6 mm
  • Height

    DX900: 50.3 mm shorter

    DX900:
    106 mm
    K40S:
    156.3 mm
  • Release year

    DX900:
    2009
    K40S:
    2019

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. DX900

    Height:
    106 mm
    Width:
    60.5 mm
    Depth:
    17 mm +8.4 mm versus K40S
    Weight:
    147 g
  2. 2. K40S

    Height:
    156.3 mm +50.3 mm versus DX900
    Width:
    73.9 mm +13.4 mm versus DX900
    Depth:
    8.6 mm
    Weight:
    Unknown

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. DX900

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. K40S

    Screen diagonal:
    6.1 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    92.9 cm²

K40S has approximately 282.5% more rectangular screen area than DX900.

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 DX900, K40S, compared at the same storage capacity.
StorageDX900K40S
32 GB Unknown 2 / 3 GB RAM Alternative RAM configurations
DX900: Original memory entry

128 MB RAM · 256 MB ROM

Practical features

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

1. DX900

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

2. K40S

NFC:
See details Yes (market/region dependent)
Headphone jack:
Yes
Memory card support:
See details microSD · up to 1 TB (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. DX900

    1530 mAh

  2. 2. K40S

    3500 mAh

    +1970 mAh versus DX900

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. DX9002. K40S

Everyday essentials
Everyday essentials — specifications for DX900, K40S.
SpecificationDX900K40S
Dimensions (HxWxD)
  • 106 Х 60.5 Х 17 mm
  • 156.3 Х 73.9 Х 8.6 mm
Weight
  • 147 g
  • 0 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 6.1" inch
Screen resolution
  • 480 x 640 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 MB RAM
  • 256 MB ROM
  • 32GB 2GB RAM
  • 32GB 3GB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 1 TB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1530 mAh
  • Removable Li-Po
  • 3500 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 9.0 (Pie)
Chipset Unknown
  • Mediatek MT6762 Helio P22 (12 nm)
NFC
  • Super AMOLED
  • Yes (market/region dependent)
Headphone jack
  • panorama
  • Yes
Display
Display — specifications for DX900, K40S.
SpecificationDX900K40S
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 92.9 cm2
Screen format
  • 4:3 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 37.9%
  • 80.4%
PPI /points per inch/
  • 286 PPI
  • 276 PPI
Camera and Video
Camera and Video — specifications for DX900, K40S.
SpecificationDX900K40S
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 3.15 MP
  • AF
  • 13 MP
  • f/2.2
  • 26mm (wide)
  • PDAF -5 MP
  • (ultrawide)
Functions
  • Dual-LED flash
  • LED flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 13 MP
  • Single
Specifications
  • VGA videocall camera
  • 13 MP
  • f/2.0
Performance

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

Performance — specifications for DX900, K40S.
SpecificationDX900K40S
Processor CPU
  • 533 MHz Samsung S3C 6410
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU Unknown
  • PowerVR GE8320
Antutu 7 score * Unknown
  • 76321
General specs
General specs — specifications for DX900, K40S.
SpecificationDX900K40S
Release date
  • 2009
  • February
  • 2019
  • August
Colors
  • Black
  • New Aurora Black
  • New Moroccan Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
  • 160 EUR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to10 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for DX900, K40S.
SpecificationDX900K40S
SIM card
  • Dual SIM (Mini-SIM)
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 GSM 900 / 1800 / 1900 - SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
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
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • SiRF Star III chipset
  • Yes
  • with A-GPS
  • GLONASS
USB
  • miniUSB
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • microUSB 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for DX900, K40S.
SpecificationDX900K40S
Radio
  • panorama
  • No
Others
  • Handwriting recognition
  • DTS: X Surround Sound -Active noise cancellation with dedicated mic
Other features
Other features — specifications for DX900, K40S.
SpecificationDX900K40S
Dop
  • Sensors Accelerometer Pocket Office -Voice memo -MP3 player Also known as Acer Tempo DX900
  • Acer Tempo X960
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - MIL-STD-810G compliant