Acer beTouch E400 vs Xiaomi Redmi Note 9S

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

    beTouch E400: 84 g lighter

    beTouch E400:
    125 g
    Redmi Note 9S:
    209 g
  • Width

    beTouch E400: 17.4 mm narrower

    beTouch E400:
    59.3 mm
    Redmi Note 9S:
    76.7 mm
  • Screen diagonal

    beTouch E400: 3.47 in smaller diagonal

    beTouch E400:
    3.2 in
    Redmi Note 9S:
    6.67 in
  • Chipset

    beTouch E400:
    Qualcomm MSM7227 Snapdragon S1
    Redmi Note 9S:
    Qualcomm SM7125 Snapdragon 720G (8 nm)
  • Rear camera layout

    beTouch E400:
    Single
    Redmi Note 9S:
    Quad
  • Depth

    Redmi Note 9S: 3.2 mm thinner

    beTouch E400:
    12 mm
    Redmi Note 9S:
    8.8 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. beTouch E400

    Height:
    115 mm
    Width:
    59.3 mm
    Depth:
    12 mm +3.2 mm versus Redmi Note 9S
  2. 2. Redmi Note 9S

    Height:
    165.8 mm +50.8 mm versus beTouch E400
    Width:
    76.7 mm +17.4 mm versus beTouch E400
    Depth:
    8.8 mm

Weight

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

  1. 1. beTouch E400

    125 g

  2. 2. Redmi Note 9S

    209 g

    +84 g versus beTouch E400

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. beTouch E400

    Screen diagonal:
    3.2 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    30.5 cm²
  2. 2. Redmi Note 9S

    Screen diagonal:
    6.67 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    107.4 cm²

Redmi Note 9S has approximately 252.3% more rectangular screen area than beTouch E400.

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 beTouch E400, Redmi Note 9S, compared at the same storage capacity.
StoragebeTouch E400Redmi Note 9S
64 GB Unknown 4 GB RAM
128 GB Unknown 6 GB RAM
beTouch E400: Original memory entry

256 MB RAM · 512 MB RAM - Liquid M2208 GB

Practical features

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

1. beTouch E400

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

2. Redmi Note 9S

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (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. beTouch E400

    1090 mAh

  2. 2. Redmi Note 9S

    5020 mAh

    +3930 mAh versus beTouch E400

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. beTouch E4002. Redmi Note 9S

Everyday essentials
Everyday essentials — specifications for beTouch E400, Redmi Note 9S.
SpecificationbeTouch E400Redmi Note 9S
Dimensions (HxWxD)
  • 115 Х 59.3 Х 12 mm
  • 165.8 Х 76.7 Х 8.8 mm
Weight
  • 125 g
  • 209 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.2" inch
  • 6.67" inch
Screen resolution
  • 320 x 480 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256 MB RAM
  • 512 MB RAM - Liquid M2208 GB
  • 64GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • microSD (dedicated slot)
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1090 mAh
  • Removable Li-Po
  • 5020 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.1 (Eclair)
  • Android 10.0; MIUI 11
Chipset
  • Qualcomm MSM7227 Snapdragon S1
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for beTouch E400, Redmi Note 9S.
SpecificationbeTouch E400Redmi Note 9S
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 30.5 cm2
  • 107.4 cm2
Screen format
  • 3:2 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 44.7%
  • 84.5%
PPI /points per inch/
  • 180 PPI
  • 395 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for beTouch E400, Redmi Note 9S.
SpecificationbeTouch E400Redmi Note 9S
Rear camera, main
  • 3.15 MP
  • Single
  • 48 MP
  • Quad
Camera specs
  • 3.15 MP
  • AF
  • 48 MP
  • f/1.8
  • 26mm (wide)
  • 1/2.0''
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0''
  • 1.12µm -5 MP
  • f/2.4
  • (macro)
  • 1.12µm -2 MP
  • (depth)
Functions Unknown
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 16 MP
  • Single
Specifications
  • Super AMOLED
  • 16 MP
  • f/2.5
  • (wide)
  • 1.0µm
Performance
Performance — specifications for beTouch E400, Redmi Note 9S.
SpecificationbeTouch E400Redmi Note 9S
Processor CPU
  • 600 MHz ARM 11
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU
  • Adreno 200
  • Adreno 618
General specs
General specs — specifications for beTouch E400, Redmi Note 9S.
SpecificationbeTouch E400Redmi Note 9S
Release date
  • 2010
  • February
  • 2020
  • March 23
Colors
  • Soft-touch Black
  • Ceramic White and Pearl Red with 3 exchangeable battery covers
  • Aurora Blue
  • Glacier white
  • Interstellar Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 80 EUR
  • $ 199
Battery life
  • Stand by time- Up to 400 h Talking time- Up to 5 h
Unknown
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for beTouch E400, Redmi Note 9S.
SpecificationbeTouch E400Redmi Note 9S
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 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
Speed
  • HSPA 3.6/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • 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
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • microUSB 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for beTouch E400, Redmi Note 9S.
SpecificationbeTouch E400Redmi Note 9S
Radio
  • Stereo FM radio
  • FM radio
  • recording
Others
  • Digital compass
  • 450 nits typ. brightness (advertised)
Other features
Other features — specifications for beTouch E400, Redmi Note 9S.
SpecificationbeTouch E400Redmi Note 9S
Dop
  • Sensors Accelerometer
  • compass - MP3/WAV/WMA/eAAC+ player -MP4/WMV/H.264 player -Pocket Office -Voice memo -Predictive text input
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof