BlackBerry Key2 vs Xiaomi Mi Max

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

    Key2: 35 g lighter

    Key2:
    168 g
    Mi Max:
    203 g
  • Width

    Key2: 16.5 mm narrower

    Key2:
    71.8 mm
    Mi Max:
    88.3 mm
  • Screen diagonal

    Key2: 1.94 in smaller diagonal

    Key2:
    4.5 in
    Mi Max:
    6.44 in
  • Chipset

    Key2:
    Qualcomm SDM660 Snapdragon 660 (14 nm)
    Mi Max:
    Qualcomm MSM8956 Snapdragon 650 -Qualcomm MSM8976 Snapdragon 652 (28 nm) Prime model
  • Rear camera layout

    Key2:
    Dual
    Mi Max:
    Single
  • Depth

    Mi Max: 1 mm thinner

    Key2:
    8.5 mm
    Mi Max:
    7.5 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. Key2

    Height:
    151.4 mm
    Width:
    71.8 mm
    Depth:
    8.5 mm +1 mm versus Mi Max
  2. 2. Mi Max

    Height:
    173.1 mm +21.7 mm versus Key2
    Width:
    88.3 mm +16.5 mm versus Key2
    Depth:
    7.5 mm

Weight

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

  1. 1. Key2

    168 g

  2. 2. Mi Max

    203 g

    +35 g versus Key2

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. Key2

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    60.3 cm²
  2. 2. Mi Max

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

Mi Max has approximately 89.6% more rectangular screen area than Key2.

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 Key2, Mi Max, compared at the same storage capacity.
StorageKey2Mi Max
64 GB 6 GB RAM Unknown
128 GB 6 GB RAM Unknown
Mi Max: Original memory entry

16 GB · 2 GB RAM; 32/64 GB · 3 GB RAM128 GB · 4 GB RAM - Prime model

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Key2

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

2. Mi Max

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 1 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. Key2

    3500 mAh

  2. 2. Mi Max

    4850 mAh

    +1350 mAh versus Key2

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. Key22. Mi Max

Everyday essentials
Everyday essentials — specifications for Key2, Mi Max.
SpecificationKey2Mi Max
Dimensions (HxWxD)
  • 151.4 Х 71.8 Х 8.5 mm
  • 173.1 Х 88.3 Х 7.5 mm
Weight
  • 168 g
  • 203 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4.5" inch
  • 6.44" inch
Screen resolution
  • 1080 x 1620 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64/128 GB
  • 6 GB RAM
  • 16 GB
  • 2 GB RAM; 32/64 GB
  • 3 GB RAM128 GB
  • 4 GB RAM - Prime model
Memory card support
  • microSD
  • up to 256 GB
  • microSD
  • up to 256 GB (uses SIM 1 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Ion
  • 4850 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • Android 6.0 (Marshmallow)
  • upgradable to 7.0 (Nougat); MIUI 10
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Qualcomm MSM8956 Snapdragon 650 -Qualcomm MSM8976 Snapdragon 652 (28 nm) Prime model
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Key2, Mi Max.
SpecificationKey2Mi Max
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 60.0 cm2
  • 114.3 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 55.2%
  • 74.8%
PPI /points per inch/
  • 434 PPI
  • 342 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass 4
Camera and Video
Camera and Video — specifications for Key2, Mi Max.
SpecificationKey2Mi Max
Rear camera, main
  • 12 MP
  • Dual
  • 16 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 1/2.3''
  • 1.28µm
  • dual pixel PDAF -12 MP
  • f/2.6
  • 1/3.4''
  • 1.0µm
  • PDAF
  • 16 MP
  • PDAF
  • f/2.0
Functions
  • Dual-LED dual-tone flash
  • HDR
  • panorama
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 1/4''
  • 1.12µm
  • 5 MP
  • f/2.0
Performance

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

Performance — specifications for Key2, Mi Max.
SpecificationKey2Mi Max
Processor CPU
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • Hexa-core (4x1.4 GHz Cortex-A53 & 2x1.8 GHz Cortex-A72) -Octa-core (4x1.4 GHz Cortex-A53 & 4x1.8 GHz Cortex-A72)
Graphics processor GPU
  • Adreno 512
  • Adreno 510
Antutu 7 score *
  • 104256
Unknown
GeekBench 4 Single Core *
  • 1628
  • 1376
GeekBench 4 Multi-Core *
  • 5894
  • 3146
GeekBench 4 RenderScript * Unknown
  • 3679
GeekBench 4 Battery * Unknown
  • 2489
GeekBench 5 Single Core * Unknown
  • 261
GeekBench 5 Multi-Core * Unknown
  • 770
General specs
General specs — specifications for Key2, Mi Max.
SpecificationKey2Mi Max
Release date
  • 2018
  • June
  • 2016
  • May
Colors
  • Black
  • Silver
  • Gray
  • Silver
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 500 EUR
  • 150 EUR
Body build
  • aluminum frame (7000 series)
  • plastic back
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for Key2, Mi Max.
SpecificationKey2Mi Max
SIM card
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by) - BBF100-6 only
  • Hybrid Dual SIM (Nano-SIM/ Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (BBF100-6 model only) -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 13(700)
  • 17(700)
  • 19(800)
  • 20(800)
  • 26(850)
  • 28(700)
  • 32(1500)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - EU
  • Africa
  • AU (BBF100-1) LTE band 1(2100)
  • 14(700)
  • 29(700)
  • 30(2300)
  • 41(2500)
  • 66(1700/2100) - Canada
  • US
  • LATAM (BBF100-2) LTE band 1(2100)
  • 41(2500) - ME
  • APAC
  • India (BBF100-6) LTE band 1(2100)
  • 41(2500) - China (BBF100-4)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO TD-SCDMA -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat11 600/75 Mbps
  • HSPA
  • LTE
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
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS2
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • 3.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB 2.0
  • USB Host
Bluetooth
  • 5.0
  • A2DP
  • LE
  • EDR
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.72 W/kg (head) 1.68 W/kg (body)
  • SAR - 0.84 W/kg (head) 0.63 W/kg (body)
Music and Audio
Music and Audio — specifications for Key2, Mi Max.
SpecificationKey2Mi Max
Radio
  • FM radio
  • FM radio
  • recording
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Key2, Mi Max.
SpecificationKey2Mi Max
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 50% in 36 min (Quick Charge 3.0) - Capacitive touch 4-row BlackBerry keyboard - Versions: BBF100-1 (EU
  • Africa
  • AU); BBF100-2 (Canada
  • US
  • LATAM); BBF100-6 (ME
  • APAC
  • India); BBF100-4 (China) Also known as BlackBerry Athena
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Versions: Global; Standard; Prime