Xiaomi Redmi Note 9S vs ZTE X990

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

    X990: 119 g lighter

    Redmi Note 9S:
    209 g
    X990:
    90 g
  • Width

    X990: 15.7 mm narrower

    Redmi Note 9S:
    76.7 mm
    X990:
    61 mm
  • Screen diagonal

    X990: 4.17 in smaller diagonal

    Redmi Note 9S:
    6.67 in
    X990:
    2.5 in
  • Rear camera layout

    Redmi Note 9S:
    Quad
    X990:
    Single
  • Depth

    Redmi Note 9S: 3.2 mm thinner

    Redmi Note 9S:
    8.8 mm
    X990:
    12 mm
  • Height

    X990: 58.8 mm shorter

    Redmi Note 9S:
    165.8 mm
    X990:
    107 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. Redmi Note 9S

    Height:
    165.8 mm +58.8 mm versus X990
    Width:
    76.7 mm +15.7 mm versus X990
    Depth:
    8.8 mm
  2. 2. X990

    Height:
    107 mm
    Width:
    61 mm
    Depth:
    12 mm +3.2 mm versus Redmi Note 9S

Weight

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

  1. 1. Redmi Note 9S

    209 g

    +119 g versus X990

  2. 2. X990

    90 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.

  1. 1. Redmi Note 9S

    Screen diagonal:
    6.67 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    107.4 cm²
  2. 2. X990

    Screen diagonal:
    2.5 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    19.4 cm²

Redmi Note 9S has approximately 455% more rectangular screen area than X990.

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 Redmi Note 9S, X990, compared at the same storage capacity.
StorageRedmi Note 9SX990
64 GB 4 GB RAM Unknown
128 GB 6 GB RAM Unknown
X990: Original memory entry

5 MB

Practical features

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

1. Redmi Note 9S

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (dedicated slot)

2. X990

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 8 GB (dedicated slot)

Battery capacity

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

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. Redmi Note 9S2. X990

Everyday essentials
Everyday essentials — specifications for Redmi Note 9S, X990.
SpecificationRedmi Note 9SX990
Dimensions (HxWxD)
  • 165.8 Х 76.7 Х 8.8 mm
  • 107 Х 61 Х 12 mm
Weight
  • 209 g
  • 90 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.67" inch
  • 2.5" inch
Screen resolution
  • 1080 x 2400 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64GB 4GB RAM
  • 128GB 6GB RAM
  • 5 MB
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 8 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 5020 mAh
  • Non-removable Li-Po
  • 0 mAh,
Operating system OS
  • Android 10.0; MIUI 11
  • Microsoft Windows Mobile 6.5 Professional
Chipset
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Redmi Note 9S, X990.
SpecificationRedmi Note 9SX990
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 107.4 cm2
  • 19.4 cm2
Screen format
  • 20:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 84.5%
  • 29.7%
PPI /points per inch/
  • 395 PPI
  • 160 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for Redmi Note 9S, X990.
SpecificationRedmi Note 9SX990
Rear camera, main
  • 48 MP
  • Quad
  • 2 MP
  • Single
Camera specs
  • 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)
  • 2 MP
Functions
  • HDR
  • panorama
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 16 MP
  • Single
  • 0 MP,
Specifications
  • 16 MP
  • f/2.5
  • (wide)
  • 1.0µm
Unknown
Performance
Performance — specifications for Redmi Note 9S, X990.
SpecificationRedmi Note 9SX990
Processor CPU
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Unknown
Graphics processor GPU
  • Adreno 618
Unknown
General specs
General specs — specifications for Redmi Note 9S, X990.
SpecificationRedmi Note 9SX990
Release date
  • 2020
  • March 23
  • 2010
  • March
Colors
  • Aurora Blue
  • Glacier white
  • Interstellar Gray
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • $ 199
Unknown
Battery life Unknown
  • Stand by time- Up to 480 h Talking time- Up to 8 h
Body build
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • plastic frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Redmi Note 9S, X990.
SpecificationRedmi Note 9SX990
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • 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)
Unknown
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
  • No
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.96 W/kg (head)
Music and Audio
Music and Audio — specifications for Redmi Note 9S, X990.
SpecificationRedmi Note 9SX990
Radio
  • FM radio
  • recording
  • Stereo FM radio
  • RDS
Others
  • 450 nits typ. brightness (advertised)
Unknown
Other features
Other features — specifications for Redmi Note 9S, X990.
SpecificationRedmi Note 9SX990
Dop
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof
  • Windows Live Messenger -MP3/WMA/eAAC+ player -MP4/H.264 player -MS Office -Organizer -Voice memo -Predictive text input Also known as Messenger by SFR 251 Edition