vivo X21i vs ZTE Blade S6 Plus

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.

  • Display technology

    OLED versus LCD

    X21i:
    OLED
    Blade S6 Plus:
    LCD
  • Weight

    Blade S6 Plus: 19.7 g lighter

    X21i:
    159 g
    Blade S6 Plus:
    139.3 g
  • Width

    X21i: 3 mm narrower

    X21i:
    75 mm
    Blade S6 Plus:
    78 mm
  • Screen diagonal

    Blade S6 Plus: 0.78 in smaller diagonal

    X21i:
    6.28 in
    Blade S6 Plus:
    5.5 in
  • Chipset

    X21i:
    Mediatek MT6771 Helio P60 (12 nm)
    Blade S6 Plus:
    Qualcomm MSM8939 Snapdragon 615 (28 nm)
  • Rear camera layout

    X21i:
    Dual
    Blade S6 Plus:
    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
    Width:
    75 mm
    Depth:
    7 mm
  2. 2. Blade S6 Plus

    Height:
    155 mm
    Width:
    78 mm +3 mm versus X21i
    Depth:
    7.7 mm +0.7 mm versus X21i

Weight

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

  1. 1. X21i

    159 g

    +19.7 g versus Blade S6 Plus

  2. 2. Blade S6 Plus

    139.3 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. Blade S6 Plus

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

X21i has approximately 18% more rectangular screen area than Blade S6 Plus.

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, Blade S6 Plus, compared at the same storage capacity.
StorageX21iBlade S6 Plus
16 GB Unknown 2 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. Blade S6 Plus

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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

    +425 mAh versus Blade S6 Plus

  2. 2. Blade S6 Plus

    3000 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. Blade S6 Plus

Everyday essentials
Everyday essentials — specifications for X21i, Blade S6 Plus.
SpecificationX21iBlade S6 Plus
Dimensions (HxWxD)
  • 154.4 Х 75 Х 7 mm
  • 155 Х 78 Х 7.7 mm
Weight
  • 159 g
  • 139.3 g
Technology
  • Super AMOLED
  • IPS LCD
Screen size
  • 6.28" inch
  • 5.5" inch
Screen resolution
  • 1080 x 2280 px
  • 720 x 1280 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
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 64 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3425 mAh
  • Non-removable Li-Ion
  • 3000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo); Funtouch 4
  • Android 5.2 (Lollipop); MiFavor 3
Chipset
  • Mediatek MT6771 Helio P60 (12 nm)
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for X21i, Blade S6 Plus.
SpecificationX21iBlade S6 Plus
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 98.4 cm2
  • 83.4 cm2
Screen format
  • 19:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 85.0%
  • 69.0%
PPI /points per inch/
  • 402 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for X21i, Blade S6 Plus.
SpecificationX21iBlade S6 Plus
Rear camera, main
  • 12 MP
  • Dual
  • 13 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF -5 MP
  • f/2.0
  • depth sensor
  • 13 MP
  • AF
Functions
  • LED flash
  • HDR
  • panorama
  • LED flash
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 24 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 24 MP
  • 5 MP
Performance

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

Performance — specifications for X21i, Blade S6 Plus.
SpecificationX21iBlade S6 Plus
Processor CPU
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
  • Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU
  • Mali-G72 MP3
  • Adreno 405
Antutu 7 score *
  • 130256
  • 30202
GeekBench 4 Single Core *
  • 1497
Unknown
GeekBench 4 Multi-Core *
  • 5759
Unknown
General specs
General specs — specifications for X21i, Blade S6 Plus.
SpecificationX21iBlade S6 Plus
Release date
  • 2018
  • May
  • 2015
  • April
Colors
  • Black
  • Aurora White
  • Ruby Red
  • Night Purple
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 430 EUR
  • 280 EUR
Communication and Connectivity
Communication and Connectivity — specifications for X21i, Blade S6 Plus.
SpecificationX21iBlade S6 Plus
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Micro-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 / 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 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 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, Blade S6 Plus.
SpecificationX21iBlade S6 Plus
Radio
  • FM radio
  • FM radio
Others
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for X21i, Blade S6 Plus.
SpecificationX21iBlade S6 Plus
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging
  • Sensors Accelerometer
  • proximity
  • compass - Also known as ZTE Blade S6+