vivo X21i vs Vodafone Smart speed 6

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

    X21i:
    OLED
    Smart speed 6:
    LCD
  • Weight

    Smart speed 6: 13 g lighter

    X21i:
    159 g
    Smart speed 6:
    146 g
  • Width

    Smart speed 6: 9.9 mm narrower

    X21i:
    75 mm
    Smart speed 6:
    65.1 mm
  • Screen diagonal

    Smart speed 6: 1.78 in smaller diagonal

    X21i:
    6.28 in
    Smart speed 6:
    4.5 in
  • Chipset

    X21i:
    Mediatek MT6771 Helio P60 (12 nm)
    Smart speed 6:
    Mediatek MT6735M (28 nm)
  • Rear camera layout

    X21i:
    Dual
    Smart speed 6:
    Single

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 +22.2 mm versus Smart speed 6
    Width:
    75 mm +9.9 mm versus Smart speed 6
    Depth:
    7 mm
  2. 2. Smart speed 6

    Height:
    132.2 mm
    Width:
    65.1 mm
    Depth:
    10 mm +3 mm versus X21i

Weight

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

  1. 1. X21i

    159 g

    +13 g versus Smart speed 6

  2. 2. Smart speed 6

    146 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. Smart speed 6

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²

X21i has approximately 76.3% more rectangular screen area than Smart speed 6.

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 X21i, Smart speed 6, compared at the same storage capacity.
StorageX21iSmart speed 6
8 GB Unknown 1 GB RAM
X21i: Original memory entry

128 GB · 4 GB RAM 64 GB · 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. X21i

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

2. Smart speed 6

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

    +1645 mAh versus Smart speed 6

  2. 2. Smart speed 6

    1780 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. Smart speed 6

Everyday essentials
Everyday essentials — specifications for X21i, Smart speed 6.
SpecificationX21iSmart speed 6
Dimensions (HxWxD)
  • 154.4 Х 75 Х 7 mm
  • 132.2 Х 65.1 Х 10 mm
Weight
  • 159 g
  • 146 g
Technology
  • Super AMOLED
  • IPS LCD
Screen size
  • 6.28" inch
  • 4.5" inch
Screen resolution
  • 1080 x 2280 px
  • 480 x 854 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
  • 8 GB
  • 1 GB 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
  • 1780 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo); Funtouch 4
  • Android 5.1 (Lollipop)
Chipset
  • Mediatek MT6771 Helio P60 (12 nm)
  • Mediatek MT6735M (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for X21i, Smart speed 6.
SpecificationX21iSmart speed 6
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 98.4 cm2
  • 55.8 cm2
Screen format
  • 19:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 85.0%
  • 64.8%
PPI /points per inch/
  • 402 PPI
  • 218 PPI
Camera and Video
Camera and Video — specifications for X21i, Smart speed 6.
SpecificationX21iSmart speed 6
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
Functions
  • LED flash
  • HDR
  • panorama
  • LED flash
Video
  • 1080p@30fps
  • 720p
Front camera, selfie
  • 24 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 24 MP
  • 2 MP
Performance

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

Performance — specifications for X21i, Smart speed 6.
SpecificationX21iSmart speed 6
Processor CPU
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
  • Quad-core 1.0 GHz Cortex-A53
Graphics processor GPU
  • Mali-G72 MP3
  • Mali-T720MP2
Antutu 7 score *
  • 130256
Unknown
GeekBench 4 Single Core *
  • 1497
Unknown
GeekBench 4 Multi-Core *
  • 5759
Unknown
General specs
General specs — specifications for X21i, Smart speed 6.
SpecificationX21iSmart speed 6
Release date
  • 2018
  • May
  • 2015
  • September
Colors
  • Black
  • Aurora White
  • Ruby Red
  • Night Purple
  • Silver
  • Anthracite
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 430 EUR
  • 70 EUR
Communication and Connectivity
Communication and Connectivity — specifications for X21i, Smart speed 6.
SpecificationX21iSmart speed 6
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Micro-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 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800)
Speed
  • HSPA
  • LTE
  • HSPA
  • LTE Cat4 150/50 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/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for X21i, Smart speed 6.
SpecificationX21iSmart speed 6
Radio
  • FM radio
  • FM radio
Others
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for X21i, Smart speed 6.
SpecificationX21iSmart speed 6
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging
  • Sensors Accelerometer
  • compass