vivo X21i vs ZTE Avail

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

    Avail: 32 g lighter

    X21i:
    159 g
    Avail:
    127 g
  • Width

    Avail: 13 mm narrower

    X21i:
    75 mm
    Avail:
    62 mm
  • Screen diagonal

    Avail: 2.78 in smaller diagonal

    X21i:
    6.28 in
    Avail:
    3.5 in
  • Rear camera layout

    X21i:
    Dual
    Avail:
    Single
  • Depth

    X21i: 6 mm thinner

    X21i:
    7 mm
    Avail:
    13 mm
  • Height

    Avail: 38.4 mm shorter

    X21i:
    154.4 mm
    Avail:
    116 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. X21i

    Height:
    154.4 mm +38.4 mm versus Avail
    Width:
    75 mm +13 mm versus Avail
    Depth:
    7 mm
  2. 2. Avail

    Height:
    116 mm
    Width:
    62 mm
    Depth:
    13 mm +6 mm versus X21i

Weight

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

  1. 1. X21i

    159 g

    +32 g versus Avail

  2. 2. Avail

    127 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. X21i

    Screen diagonal:
    6.28 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    98.4 cm²
  2. 2. Avail

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

X21i has approximately 169.9% more rectangular screen area than Avail.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

X21i: Original memory entry

128 GB · 4 GB RAM 64 GB · 6 GB RAM

Avail: Original memory entry

512 MB · 512 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. X21i

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 slot)

2. Avail

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. X21i

    3425 mAh

    +1625 mAh versus Avail

  2. 2. Avail

    1800 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. X21i2. Avail

Everyday essentials
Everyday essentials — specifications for X21i, Avail.
SpecificationX21iAvail
Dimensions (HxWxD)
  • 154.4 Х 75 Х 7 mm
  • 116 Х 62 Х 13 mm
Weight
  • 159 g
  • 127 g
Technology
  • Super AMOLED
  • TFT
Screen size
  • 6.28" inch
  • 3.5" inch
Screen resolution
  • 1080 x 2280 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 4 GB RAM 64 GB
  • 6 GB RAM
  • 512 MB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3425 mAh
  • Non-removable Li-Ion
  • 1800 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo); Funtouch 4
  • Android 2.3 (Gingerbread)
Chipset
  • Mediatek MT6771 Helio P60 (12 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for X21i, Avail.
SpecificationX21iAvail
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 98.4 cm2
  • 36.5 cm2
Screen format
  • 19:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 85.0%
  • 50.7%
PPI /points per inch/
  • 402 PPI
  • 165 PPI
Camera and Video
Camera and Video — specifications for X21i, Avail.
SpecificationX21iAvail
Rear camera, main
  • 12 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF -5 MP
  • f/2.0
  • depth sensor
  • 5 MP
  • AF
Functions
  • LED flash
  • HDR
  • panorama
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 24 MP
  • Single
  • 0 MP,
Specifications
  • 24 MP
Unknown
Performance

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

Performance — specifications for X21i, Avail.
SpecificationX21iAvail
Processor CPU
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Unknown
Graphics processor GPU
  • Mali-G72 MP3
Unknown
Antutu 7 score *
  • 130256
Unknown
GeekBench 4 Single Core *
  • 1497
Unknown
GeekBench 4 Multi-Core *
  • 5759
Unknown
General specs
General specs — specifications for X21i, Avail.
SpecificationX21iAvail
Release date
  • 2018
  • May
  • 2011
  • October
Colors
  • Black
  • Aurora White
  • Ruby Red
  • Night Purple
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 430 EUR
  • 330 EUR
Battery life Unknown
  • Stand by time- Up to 225 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for X21i, Avail.
SpecificationX21iAvail
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA
  • LTE
  • HSPA 7.2/2 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.0
  • A2DP
Music and Audio
Music and Audio — specifications for X21i, Avail.
SpecificationX21iAvail
Radio
  • FM radio
  • No
Others
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for X21i, Avail.
SpecificationX21iAvail
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging
  • Sensors Accelerometer
  • proximity
  • compass - MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -Voice memo/dial -Predictive text input - For AT&T