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Xiaomi Redmi Note 9S vs ZTE Open

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

    Open: 14.7 mm narrower

    Redmi Note 9S:
    76.7 mm
    Open:
    62 mm
  • Screen diagonal

    Open: 3.17 in smaller diagonal

    Redmi Note 9S:
    6.67 in
    Open:
    3.5 in
  • Chipset

    Redmi Note 9S:
    Qualcomm SM7125 Snapdragon 720G (8 nm)
    Open:
    Qualcomm MSM7225A Snapdragon S1
  • Rear camera layout

    Redmi Note 9S:
    Quad
    Open:
    Single
  • Depth

    Redmi Note 9S: 3.7 mm thinner

    Redmi Note 9S:
    8.8 mm
    Open:
    12.5 mm
  • Height

    Open: 51.8 mm shorter

    Redmi Note 9S:
    165.8 mm
    Open:
    114 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 +51.8 mm versus Open
    Width:
    76.7 mm +14.7 mm versus Open
    Depth:
    8.8 mm
    Weight:
    209 g
  2. 2. Open

    Height:
    114 mm
    Width:
    62 mm
    Depth:
    12.5 mm +3.7 mm versus Redmi Note 9S
    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. Redmi Note 9S

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

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²

Redmi Note 9S has approximately 194.5% more rectangular screen area than Open.

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, Open, compared at the same storage capacity.
StorageRedmi Note 9SOpen
64 GB 4 GB RAM Unknown
128 GB 6 GB RAM Unknown
Open: Original memory entry

512 MB ROM · 256 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. Redmi Note 9S

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

2. Open

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 2 GB included

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. Redmi Note 9S

    5020 mAh

    +3820 mAh versus Open

  2. 2. Open

    1200 mAh

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. Open

Everyday essentials
Everyday essentials — specifications for Redmi Note 9S, Open.
SpecificationRedmi Note 9SOpen
Dimensions (HxWxD)
  • 165.8 Х 76.7 Х 8.8 mm
  • 114 Х 62 Х 12.5 mm
Weight
  • 209 g
  • 0 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.67" inch
  • 3.5" inch
Screen resolution
  • 1080 x 2400 px
  • 320 x 480 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
  • 512 MB ROM
  • 256 MB RAM
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 5020 mAh
  • Non-removable Li-Po
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Android 10.0; MIUI 11
  • Firefox OS 1.0
Chipset
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
  • Qualcomm MSM7225A Snapdragon S1
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Redmi Note 9S, Open.
SpecificationRedmi Note 9SOpen
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 107.4 cm2
  • 36.5 cm2
Screen format
  • 20:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 84.5%
  • 51.6%
PPI /points per inch/
  • 395 PPI
  • 165 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for Redmi Note 9S, Open.
SpecificationRedmi Note 9SOpen
Rear camera, main
  • 48 MP
  • Quad
  • 3.15 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)
  • 3.15 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

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

Performance — specifications for Redmi Note 9S, Open.
SpecificationRedmi Note 9SOpen
Processor CPU
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
  • 1.0 GHz Cortex-A5
Graphics processor GPU
  • Adreno 618
  • Adreno 200
Antutu 7 score * Unknown
  • 1456
General specs
General specs — specifications for Redmi Note 9S, Open.
SpecificationRedmi Note 9SOpen
Release date
  • 2020
  • March 23
  • 2013
  • February
Colors
  • Aurora Blue
  • Glacier white
  • Interstellar Gray
  • Blue
  • Orange
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • $ 199
Unknown
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, Open.
SpecificationRedmi Note 9SOpen
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)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A
  • HSPA 7.2/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
  • Yes
  • with A-GPS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.1
  • A2DP
  • EDR
Music and Audio
Music and Audio — specifications for Redmi Note 9S, Open.
SpecificationRedmi Note 9SOpen
Radio
  • FM radio
  • recording
  • Stereo FM radio
Others
  • 450 nits typ. brightness (advertised)
Unknown
Other features
Other features — specifications for Redmi Note 9S, Open.
SpecificationRedmi Note 9SOpen
Dop
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof
  • Sensors Accelerometer
  • proximity - MP3/eAAC+/WAV/WMA player -MP4/H.264/WMV player -Document viewer -Photo viewer -Organizer -Voice memo/dial -Predictive text input