Nokia X71 vs vivo X21 UD

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

    X71:
    LCD
    X21 UD:
    OLED
  • Weight

    X21 UD: 23.8 g lighter

    X71:
    180 g
    X21 UD:
    156.2 g
  • Width

    X21 UD: 1.7 mm narrower

    X71:
    76.5 mm
    X21 UD:
    74.8 mm
  • Rear camera layout

    X71:
    Triple
    X21 UD:
    Dual
  • Depth

    X21 UD: 0.6 mm thinner

    X71:
    8 mm
    X21 UD:
    7.4 mm
  • Height

    X21 UD: 2.7 mm shorter

    X71:
    157.2 mm
    X21 UD:
    154.5 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. X71

    Height:
    157.2 mm +2.7 mm versus X21 UD
    Width:
    76.5 mm +1.7 mm versus X21 UD
    Depth:
    8 mm +0.6 mm versus X21 UD
  2. 2. X21 UD

    Height:
    154.5 mm
    Width:
    74.8 mm
    Depth:
    7.4 mm

Weight

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

  1. 1. X71

    180 g

    +23.8 g versus X21 UD

  2. 2. X21 UD

    156.2 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. X71

    X71: Screen geometry unavailable or conflicting.

  2. 2. X21 UD

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

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 X71, X21 UD, compared at the same storage capacity.
StorageX71X21 UD
128 GB Recorded for all phones 6 GB RAM 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. X71

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB

2. X21 UD

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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. X71

    3500 mAh

    +300 mAh versus X21 UD

  2. 2. X21 UD

    3200 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. X712. X21 UD

Everyday essentials
Everyday essentials — specifications for X71, X21 UD.
SpecificationX71X21 UD
Dimensions (HxWxD)
  • 157.2 Х 76.5 Х 8 mm
  • 154.5 Х 74.8 Х 7.4 mm
Weight
  • 180 g
  • 156.2 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 6.39" inch
  • 6.28" inch
Screen resolution
  • 1080 x 2316 px
  • 1080 x 2280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 6 GB RAM
  • 128 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 256 GB
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Po
  • 3200 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 9.0 (Pie); Android One
  • Android 8.1 (Oreo); Funtouch 4
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for X71, X21 UD.
SpecificationX71X21 UD
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 100.9 cm2
  • 98.4 cm2
Screen format Unknown
  • 19:9 (height:width)
Screen to body ratio
  • 83.9%
  • 85.2%
PPI /points per inch/
  • 0 PPI
  • 402 PPI
Camera and Video
Camera and Video — specifications for X71, X21 UD.
SpecificationX71X21 UD
Rear camera, main
  • 48 MP
  • Triple
  • 12 MP
  • Dual
Camera specs
  • 48 MP
  • f/1.8
  • 1/2''
  • 0.8µm
  • PDAF -8 MP
  • 13mm (ultrawide) -5 MP
  • f/2.4
  • depth sensor
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF -5 MP
  • f/2.4
  • depth sensor
Functions
  • Zeiss optics
  • Dual-LED flash
  • panorama
  • HDR
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 12 MP
  • Single
Specifications
  • 16 MP
  • f/2.0
  • 12 MP
  • f/2.0
Performance

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

Performance — specifications for X71, X21 UD.
SpecificationX71X21 UD
Processor CPU
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU
  • Adreno 512
  • Adreno 512
Antutu 7 score *
  • 142562
  • 143592
GeekBench 4 Single Core *
  • 1455
Unknown
GeekBench 4 Multi-Core *
  • 5075
Unknown
General specs
General specs — specifications for X71, X21 UD.
SpecificationX71X21 UD
Release date
  • 2019
  • April
  • 2018
  • March
Colors
  • Black
  • Black
  • Ruby Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 290 EUR
  • 550 EUR
Body build
  • Front/back glass
  • aluminum frame
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for X71, X21 UD.
SpecificationX71X21 UD
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Hybrid 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)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA
  • LTE-A
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 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 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for X71, X21 UD.
SpecificationX71X21 UD
Radio Unknown
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for X71, X21 UD.
SpecificationX71X21 UD
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 18W - For China
  • Sensors Fingerprint (under display)
  • accelerometer
  • proximity
  • compass - Fast battery charging