vivo iQOO Neo 855 vs Xiaomi Redmi Note 9S

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.

  • Display technology

    OLED versus LCD

    iQOO Neo 855:
    OLED
    Redmi Note 9S:
    LCD
  • Weight

    iQOO Neo 855: 10.5 g lighter

    iQOO Neo 855:
    198.5 g
    Redmi Note 9S:
    209 g
  • Width

    iQOO Neo 855: 1.5 mm narrower

    iQOO Neo 855:
    75.2 mm
    Redmi Note 9S:
    76.7 mm
  • Screen diagonal

    iQOO Neo 855: 0.29 in smaller diagonal

    iQOO Neo 855:
    6.38 in
    Redmi Note 9S:
    6.67 in
  • Memory variants

    At 64 GB storage

    iQOO Neo 855:
    6 GB RAM
    Redmi Note 9S:
    4 GB RAM
  • Chipset

    iQOO Neo 855:
    Qualcomm SM8150 Snapdragon 855 (7 nm)
    Redmi Note 9S:
    Qualcomm SM7125 Snapdragon 720G (8 nm)

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. iQOO Neo 855

    Height:
    159.5 mm
    Width:
    75.2 mm
    Depth:
    8.1 mm
  2. 2. Redmi Note 9S

    Height:
    165.8 mm +6.3 mm versus iQOO Neo 855
    Width:
    76.7 mm +1.5 mm versus iQOO Neo 855
    Depth:
    8.8 mm +0.7 mm versus iQOO Neo 855

Weight

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

  1. 1. iQOO Neo 855

    198.5 g

  2. 2. Redmi Note 9S

    209 g

    +10.5 g versus iQOO Neo 855

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. iQOO Neo 855

    Screen diagonal:
    6.38 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    99.9 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 7.5% more rectangular screen area than iQOO Neo 855.

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 iQOO Neo 855, Redmi Note 9S, compared at the same storage capacity.
StorageiQOO Neo 855Redmi Note 9S
64 GB Recorded for all phones 6 GB RAM 4 GB RAM
128 GB Recorded for all phones 6 / 8 GB RAM Alternative RAM configurations 6 GB RAM
256 GB 8 GB RAM Not recorded

Practical features

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

1. iQOO Neo 855

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

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. iQOO Neo 855

    4500 mAh

  2. 2. Redmi Note 9S

    5020 mAh

    +520 mAh versus iQOO Neo 855

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. iQOO Neo 8552. Redmi Note 9S

Everyday essentials
Everyday essentials — specifications for iQOO Neo 855, Redmi Note 9S.
SpecificationiQOO Neo 855Redmi Note 9S
Dimensions (HxWxD)
  • 159.5 Х 75.2 Х 8.1 mm
  • 165.8 Х 76.7 Х 8.8 mm
Weight
  • 198.5 g
  • 209 g
Technology
  • Super AMOLED
  • IPS LCD
Screen size
  • 6.38" inch
  • 6.67" inch
Screen resolution
  • 1080 x 2340 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64GB 6GB RAM
  • 128GB 6GB RAM
  • 128GB 8GB RAM
  • 256GB 8GB RAM
  • 64GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • No
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4500 mAh
  • Non-removable Li-Po
  • 5020 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 9.0 (Pie); Funtouch 9
  • Android 10.0; MIUI 11
Chipset
  • Qualcomm SM8150 Snapdragon 855 (7 nm)
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for iQOO Neo 855, Redmi Note 9S.
SpecificationiQOO Neo 855Redmi Note 9S
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 99.9 cm2
  • 107.4 cm2
Screen format
  • 19.5:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 83.3%
  • 84.5%
PPI /points per inch/
  • 404 PPI
  • 395 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for iQOO Neo 855, Redmi Note 9S.
SpecificationiQOO Neo 855Redmi Note 9S
Rear camera, main
  • 12 MP
  • Triple
  • 48 MP
  • Quad
Camera specs
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF -8 MP
  • f/2.2
  • (wide) -2 MP
  • f/2.4
  • depth sensor
  • 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
  • HDR
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 16 MP
  • f/2.0
  • 26mm (wide)
  • 1/3.1"
  • 1.0µm
  • 16 MP
  • f/2.5
  • (wide)
  • 1.0µm
Performance

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

Performance — specifications for iQOO Neo 855, Redmi Note 9S.
SpecificationiQOO Neo 855Redmi Note 9S
Processor CPU
  • Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU
  • Adreno 640
  • Adreno 618
Antutu 8 score *
  • 425118
Unknown
General specs
General specs — specifications for iQOO Neo 855, Redmi Note 9S.
SpecificationiQOO Neo 855Redmi Note 9S
Release date
  • 2019
  • October
  • 2020
  • March 23
Colors
  • Purple
  • Aurora White
  • Black
  • Aurora Blue
  • Glacier white
  • Interstellar Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 230 USD
  • $ 199
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for iQOO Neo 855, Redmi Note 9S.
SpecificationiQOO Neo 855Redmi Note 9S
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1700(AWS) / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 19(800)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • 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
  • LTE-A
  • HSPA 42.2/5.76 Mbps
  • LTE-A
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 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for iQOO Neo 855, Redmi Note 9S.
SpecificationiQOO Neo 855Redmi Note 9S
Radio
  • No
  • FM radio
  • recording
Others
  • HDR10
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
  • 450 nits typ. brightness (advertised)
Other features
Other features — specifications for iQOO Neo 855, Redmi Note 9S.
SpecificationiQOO Neo 855Redmi Note 9S
Dop
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 33W
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof