Xiaomi Redmi Note 9S vs ZTE Open II

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.

  • Width

    Open II: 15.7 mm narrower

    Redmi Note 9S:
    76.7 mm
    Open II:
    61 mm
  • Screen diagonal

    Open II: 3.17 in smaller diagonal

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

    Redmi Note 9S:
    Qualcomm SM7125 Snapdragon 720G (8 nm)
    Open II:
    Qualcomm MSM8210 Snapdragon 200 (28 nm)
  • Rear camera layout

    Redmi Note 9S:
    Quad
    Open II:
    Single
  • Depth

    Redmi Note 9S: 1.7 mm thinner

    Redmi Note 9S:
    8.8 mm
    Open II:
    10.5 mm
  • Height

    Open II: 47.8 mm shorter

    Redmi Note 9S:
    165.8 mm
    Open II:
    118 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 +47.8 mm versus Open II
    Width:
    76.7 mm +15.7 mm versus Open II
    Depth:
    8.8 mm
    Weight:
    209 g
  2. 2. Open II

    Height:
    118 mm
    Width:
    61 mm
    Depth:
    10.5 mm +1.7 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 II

    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 II.

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

2 GB · 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 II

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (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. Redmi Note 9S

    5020 mAh

    +3870 mAh versus Open II

  2. 2. Open II

    1150 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 II

Everyday essentials
Everyday essentials — specifications for Redmi Note 9S, Open II.
SpecificationRedmi Note 9SOpen II
Dimensions (HxWxD)
  • 165.8 Х 76.7 Х 8.8 mm
  • 118 Х 61 Х 10.5 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
  • 2 GB
  • 256 MB RAM
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 5020 mAh
  • Non-removable Li-Po
  • 1150 mAh
  • Removable Li-Ion
Operating system OS
  • Android 10.0; MIUI 11
  • Firefox OS 1.3
Chipset
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
  • Qualcomm MSM8210 Snapdragon 200 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Redmi Note 9S, Open II.
SpecificationRedmi Note 9SOpen II
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%
  • 50.7%
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 II.
SpecificationRedmi Note 9SOpen II
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

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

Performance — specifications for Redmi Note 9S, Open II.
SpecificationRedmi Note 9SOpen II
Processor CPU
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
  • Dual-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Adreno 618
  • Adreno 302
Antutu 7 score * Unknown
  • 12396
General specs
General specs — specifications for Redmi Note 9S, Open II.
SpecificationRedmi Note 9SOpen II
Release date
  • 2020
  • March 23
  • 2014
  • February
Colors
  • Aurora Blue
  • Glacier white
  • Interstellar Gray
  • Black
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 II.
SpecificationRedmi Note 9SOpen II
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Micro-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
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
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
Unknown
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.1
Music and Audio
Music and Audio — specifications for Redmi Note 9S, Open II.
SpecificationRedmi Note 9SOpen II
Radio
  • FM radio
  • recording
  • FM radio
Others
  • 450 nits typ. brightness (advertised)
Unknown
Other features
Other features — specifications for Redmi Note 9S, Open II.
SpecificationRedmi Note 9SOpen II
Dop
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof
  • Sensors Accelerometer MP3/AAC+/WAV player -MP4/H.264 player -Photo viewer -Predictive text input