Asus Zenfone Go ZB551KL 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.

  • Weight

    Zenfone Go ZB551KL: 49 g lighter

    Zenfone Go ZB551KL:
    160 g
    Redmi Note 9S:
    209 g
  • Screen diagonal

    Zenfone Go ZB551KL: 1.17 in smaller diagonal

    Zenfone Go ZB551KL:
    5.5 in
    Redmi Note 9S:
    6.67 in
  • Chipset

    Zenfone Go ZB551KL:
    Qualcomm MSM8928 Snapdragon 400 (28 nm)
    Redmi Note 9S:
    Qualcomm SM7125 Snapdragon 720G (8 nm)
  • Rear camera layout

    Zenfone Go ZB551KL:
    Single
    Redmi Note 9S:
    Quad
  • Depth

    Redmi Note 9S: 1.9 mm thinner

    Zenfone Go ZB551KL:
    10.7 mm
    Redmi Note 9S:
    8.8 mm
  • Height

    Zenfone Go ZB551KL: 14.8 mm shorter

    Zenfone Go ZB551KL:
    151 mm
    Redmi Note 9S:
    165.8 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. Zenfone Go ZB551KL

    Height:
    151 mm
    Width:
    76.9 mm
    Depth:
    10.7 mm +1.9 mm versus Redmi Note 9S
  2. 2. Redmi Note 9S

    Height:
    165.8 mm +14.8 mm versus Zenfone Go ZB551KL
    Width:
    76.7 mm
    Depth:
    8.8 mm

Weight

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

  1. 1. Zenfone Go ZB551KL

    160 g

  2. 2. Redmi Note 9S

    209 g

    +49 g versus Zenfone Go ZB551KL

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. Zenfone Go ZB551KL

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 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 28.8% more rectangular screen area than Zenfone Go ZB551KL.

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 Zenfone Go ZB551KL, Redmi Note 9S, compared at the same storage capacity.
StorageZenfone Go ZB551KLRedmi Note 9S
16 GB 2 GB RAM Not recorded
32 GB 2 GB RAM Not recorded
64 GB Not recorded 4 GB RAM
128 GB Not recorded 6 GB 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. Zenfone Go ZB551KL

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB (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. Zenfone Go ZB551KL

    3010 mAh

  2. 2. Redmi Note 9S

    5020 mAh

    +2010 mAh versus Zenfone Go ZB551KL

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. Zenfone Go ZB551KL2. Redmi Note 9S

Everyday essentials
Everyday essentials — specifications for Zenfone Go ZB551KL, Redmi Note 9S.
SpecificationZenfone Go ZB551KLRedmi Note 9S
Dimensions (HxWxD)
  • 151 Х 76.9 Х 10.7 mm
  • 165.8 Х 76.7 Х 8.8 mm
Weight
  • 160 g
  • 209 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 6.67" inch
Screen resolution
  • 720 x 1280 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16/32 GB
  • 2 GB RAM
  • 64GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • microSD
  • up to 64 GB (dedicated slot)
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3010 mAh
  • Removable Li-Ion
  • 5020 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 5.1 (Lollipop)
  • Android 10.0; MIUI 11
Chipset
  • Qualcomm MSM8928 Snapdragon 400 (28 nm)
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone Go ZB551KL, Redmi Note 9S.
SpecificationZenfone Go ZB551KLRedmi Note 9S
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 107.4 cm2
Screen format
  • 16:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 71.8%
  • 84.5%
PPI /points per inch/
  • 267 PPI
  • 395 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Zenfone Go ZB551KL, Redmi Note 9S.
SpecificationZenfone Go ZB551KLRedmi Note 9S
Rear camera, main
  • 8 MP
  • Single
  • 48 MP
  • Quad
Camera specs
  • 8 MP or 13 MP
  • AF
  • f/2.0
  • 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
  • Dual-LED dual-tone flash
  • HDR
  • panorama
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 5 MP
  • f/2.0
  • 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 Zenfone Go ZB551KL, Redmi Note 9S.
SpecificationZenfone Go ZB551KLRedmi Note 9S
Processor CPU
  • Quad-core 1.6 GHz Cortex-A7
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU
  • Adreno 305
  • Adreno 618
Antutu 7 score *
  • 23458
Unknown
General specs
General specs — specifications for Zenfone Go ZB551KL, Redmi Note 9S.
SpecificationZenfone Go ZB551KLRedmi Note 9S
Release date
  • 2016
  • April
  • 2020
  • March 23
Colors
  • Charcoal Black
  • Pearl White
  • Lake Blue
  • Glacier Gray
  • Sheer Gold
  • Glamour Red
  • Floral Pink
  • Silver Blue
  • Aurora Blue
  • Glacier white
  • Interstellar Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • $ 199
Battery life
  • Stand by time- Up to 335 h (3G) Talking time- Up to 16 h (3G)
Unknown
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone Go ZB551KL, Redmi Note 9S.
SpecificationZenfone Go ZB551KLRedmi Note 9S
SIM card
  • Dual SIM (Micro-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 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800) - Global LTE band 1(2100)
  • 5(850) - India
  • 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 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • 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
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Zenfone Go ZB551KL, Redmi Note 9S.
SpecificationZenfone Go ZB551KLRedmi Note 9S
Radio
  • FM radio
  • FM radio
  • recording
Others Unknown
  • 450 nits typ. brightness (advertised)
Other features
Other features — specifications for Zenfone Go ZB551KL, Redmi Note 9S.
SpecificationZenfone Go ZB551KLRedmi Note 9S
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof