Lenovo K8 Plus vs Panasonic T21

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

    T21: 45 g lighter

    K8 Plus:
    165 g
    T21:
    120 g
  • Width

    T21: 10.2 mm narrower

    K8 Plus:
    73.7 mm
    T21:
    63.5 mm
  • Screen diagonal

    T21: 1.2 in smaller diagonal

    K8 Plus:
    5.2 in
    T21:
    4 in
  • Chipset

    K8 Plus:
    Mediatek MT6757 Helio P25 (16 nm)
    T21:
    Mediatek MT6589 (28 nm)
  • Rear camera layout

    K8 Plus:
    Dual
    T21:
    Single
  • Height

    T21: 35.3 mm shorter

    K8 Plus:
    147.9 mm
    T21:
    112.6 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. K8 Plus

    Height:
    147.9 mm +35.3 mm versus T21
    Width:
    73.7 mm +10.2 mm versus T21
    Depth:
    9 mm
  2. 2. T21

    Height:
    112.6 mm
    Width:
    63.5 mm
    Depth:
    9.2 mm

Weight

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

  1. 1. K8 Plus

    165 g

    +45 g versus T21

  2. 2. T21

    120 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. K8 Plus

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    74.5 cm²
  2. 2. T21

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

K8 Plus has approximately 63.7% more rectangular screen area than T21.

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 K8 Plus, T21, compared at the same storage capacity.
StorageK8 PlusT21
4 GB Unknown 1 GB RAM
K8 Plus: Original memory entry

32 GB · 3/4 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. K8 Plus

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (dedicated slot)

2. T21

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. K8 Plus

    4000 mAh

    +2500 mAh versus T21

  2. 2. T21

    1500 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. K8 Plus2. T21

Everyday essentials
Everyday essentials — specifications for K8 Plus, T21.
SpecificationK8 PlusT21
Dimensions (HxWxD)
  • 147.9 Х 73.7 Х 9 mm
  • 112.6 Х 63.5 Х 9.2 mm
Weight
  • 165 g
  • 120 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.2" inch
  • 4" inch
Screen resolution
  • 1080 x 1920 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3/4 GB RAM
  • 4 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Po
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 7.1.1 (Nougat)
  • upgradable to Android 8.0 (Oreo)
  • Android 4.1 (Jelly Bean)
Chipset
  • Mediatek MT6757 Helio P25 (16 nm)
  • Mediatek MT6589 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for K8 Plus, T21.
SpecificationK8 PlusT21
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 74.5 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 68.4%
  • 63.7%
PPI /points per inch/
  • 424 PPI
  • 233 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for K8 Plus, T21.
SpecificationK8 PlusT21
Rear camera, main
  • 13 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • 13 MP
  • f/2.0
  • PDAF -5 MP
  • depth sensor
  • 5 MP
  • AF
Functions
  • Dual-LED dual-tone flash
  • HDR
  • panorama
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 8 MP
  • VGA
Performance

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

Performance — specifications for K8 Plus, T21.
SpecificationK8 PlusT21
Processor CPU
  • Octa-core (4x2.5 GHz Cortex-A53 & 4x1.4 GHz Cortex-A53)
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Mali-T880MP2
  • PowerVR SGX544
Antutu 7 score *
  • 65892
Unknown
GeekBench 4 Single Core *
  • 901
Unknown
GeekBench 4 Multi-Core *
  • 3435
Unknown
GeekBench 4 RenderScript *
  • 2549
Unknown
GeekBench 5 Single Core *
  • 174
Unknown
GeekBench 5 Multi-Core *
  • 788
Unknown
General specs
General specs — specifications for K8 Plus, T21.
SpecificationK8 PlusT21
Release date
  • 2017
  • September
  • 2013
  • Q3
Colors
  • Fine Gold
  • Venom Black
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 200 EUR
  • 120 EUR
Battery life
  • Stand by time- Up to 401 h (3G) Talking time- Up to 26 h (3G)
Unknown
Body build
  • aluminum body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for K8 Plus, T21.
SpecificationK8 PlusT21
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 40(2300)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 2.1
  • A2DP
Music and Audio
Music and Audio — specifications for K8 Plus, T21.
SpecificationK8 PlusT21
Radio
  • FM radio
  • No
Others
  • Active noise cancellation with dedicated mic -Dolby Atmos sound enhancement
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for K8 Plus, T21.
SpecificationK8 PlusT21
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer
  • proximity
  • compass