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  2. Lenovo K9 vs Nokia E51

Lenovo K9 vs Nokia E51

Compare recorded specifications, size and practical differences.

Lenovo K9

Lenovo K9

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    Nokia E51

    Nokia E51

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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.

        • WeightE51: 55 g lighterE51: 100 g · K9: 155 g
        • WidthE51: 26.9 mm narrowerE51: 46 mm · K9: 72.9 mm
        • Screen diagonalE51: 3.7 in smaller diagonalE51: 2 in · K9: 5.7 in
        • Rear camera layoutDual / SingleK9: Dual · E51: Single
        • DepthK9: 4 mm thinnerK9: 8 mm · E51: 12 mm
        • HeightE51: 39 mm shorterE51: 114.8 mm · K9: 153.8 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.

        Front
        K9: 153.8 × 72.9 mm 1 E51: 114.8 × 46 mm 2
        Side
        K9: 153.8 × 8 mm 1 E51: 114.8 × 12 mm 2
        1. 1. K9
          Height
          153.8 mm+39 mm versus E51
          Width
          72.9 mm+26.9 mm versus E51
          Depth
          8 mm
          Weight
          155 g
        2. 2. E51
          Height
          114.8 mm
          Width
          46 mm
          Depth
          12 mm+4 mm versus K9
          Weight
          100 g
        Weight

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

        1. 1. K9155 g

          +55 g versus E51

        2. 2. E51100 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.

        Screen size
        K9: 5.7 in, 18:9, About 83.8 cm² rectangular area 1 E51: 2 in, 4:3, About 12.4 cm² rectangular area 2
        1. 1. K9 5.7 in · 18:9 About 83.8 cm² rectangular area
        2. 2. E51 2 in · 4:3 About 12.4 cm² rectangular area

        K9 has approximately 576.9% more rectangular screen area than E51.

        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 by storage capacity and phone
        StorageK9E51
        32 GB 3 GB RAM Unknown
        E51: Original memory entry

        130 MB · 96 MB 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. K9

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

        2. E51

        NFC
        Unknown
        Headphone jack
        No
        Memory card support
        See details microSD · up to 16 GB (dedicated slot)

        Battery capacity

        Capacity is not battery life. No endurance test is implied.

        Recorded capacity

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

        1. 1. K93000 mAh

          +1950 mAh versus E51

        2. 2. E511050 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. K92. E51

        Everyday essentials
        Everyday essentials
        SpecificationK9E51
        Dimensions (HxWxD)
        • 153.8 Х 72.9 Х 8 mm
        • 114.8 Х 46 Х 12 mm
        Weight
        • 155 g
        • 100 g
        Technology
        • IPS LCD
        • TFT
        Screen size
        • 5.7" inch
        • 2" inch
        Screen resolution
        • 720 x 1440 px
        • 240 x 320 px
        Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
        • 32 GB
        • 3 GB RAM
        • 130 MB
        • 96 MB RAM
        Memory card support
        • microSD
        • up to 256 GB (uses shared SIM slot)
        • microSD
        • up to 16 GB (dedicated slot)
        BatteryCapacity is not battery life. No endurance test is implied.
        • 3000 mAh
        • Non-removable Li-Ion
        • 1050 mAh
        • Removable Li-Ion
        Operating system OS
        • Android 8.1 (Oreo)
        • Symbian OS 9.2
        • Series 60 v3.1 UI
        Chipset
        • Mediatek MT6762 Helio P22 (12 nm)
        		 Unknown
        Headphone jack
        • Yes
        • No
        Display
        Display
        SpecificationK9E51
        Touchscreen
        • capacitive touchscreen
        		 Unknown
        Display colors
        • 16M
        • 16M
        Screen area
        • 83.8 cm2
        • 12.4 cm2
        Screen format
        • 18:9 (height:width)
        • 4:3 (height:width)
        Screen to body ratio
        • 74.8%
        • 23.5%
        PPI /points per inch/
        • 282 PPI
        • 200 PPI
        Camera and Video
        Camera and Video
        SpecificationK9E51
        Rear camera, main
        • 13 MP
        • Dual
        • 2 MP
        • Single
        Camera specs
        • 13 MP
        • f/2.2
        • 1/3''
        • 1.12µm
        • PDAF -5 MP
        • f/2.4
        • depth sensor
        • 2 MP
        Functions
        • LED flash
        		 Unknown
        Video
        • 1080p@30/60fps
        • 320p@15fps
        Front camera, selfie
        • 13 MP
        • Dual
        • 0 MP,
        Specifications
        • 13 MP
        • f/2.2
        • 1/3''
        • 1.12µm
        • PDAF 5 MP
        • f/2.4
        • depth sensor
        		 Unknown
        Performance
        Performance
        SpecificationK9E51
        Processor CPU
        • Octa-core 2.0 GHz Cortex-A53
        • 369 MHz ARM 11
        Graphics processor GPU
        • PowerVR GE8320
        		 Unknown
        Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.
        • 75320
        		 Unknown
        General specs
        General specs
        SpecificationK9E51
        Release date
        • 2018
        • October
        • 2007
        • September
        Colors
        • Black
        • Blue
        • Black
        • Silver
        Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
        • 9000 INR
        • 120 EUR
        Battery life Unknown
        • Stand by time- Up to 310 h Talking time- Up to 4 h 20 min
        Communication and Connectivity
        Communication and Connectivity
        SpecificationK9E51
        SIM card
        • Hybrid Dual SIM (Nano-SIM
        • dual stand-by)
        • Mini-SIM
        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)
        • 20(800)
        • 38(2600)
        • 40(2300)
        • 41(2500)
        • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
        Speed
        • HSPA 42.2/5.76 Mbps
        • LTE-A Cat6 300/50 Mbps
        • HSPA 3.6/0.384 Mbps
        GPRS
        • Yes
        • Class 32
        Edge
        • Yes
        • Class 32
        Wi-Fi
        • Wi-Fi 802.11 b/g/n
        • Wi-Fi Direct
        • hotspot
        • Wi-Fi 802.11b/g
        • VoIP over WLAN
        GPS
        • Yes
        • with A-GPS
        • No
        USB
        • 2.0
        • Type-C 1.0 reversible connector
        • USB On-The-Go
        • miniUSB 2.0
        Bluetooth
        • 4.1
        • A2DP
        • LE
        • 2.0
        • A2DP
        Harmful irradiation Unknown
        • SAR - 1.38 W/kg (head) 0.75 W/kg (body) SAR EU - 1.47 W/kg (head)
        Music and Audio
        Music and Audio
        SpecificationK9E51
        Radio
        • FM radio
        • FM radio
        Others
        • Active noise cancellation with dedicated mic
        • Five-way scroll key -Downloadable themes
        • 2.5 mm audio jack
        Other features
        Other features
        SpecificationK9E51
        Dop
        • Sensors Fingerprint (rear-mounted)
        • accelerometer
        • proximity - Fast battery charging 2A/5V 10W - For India
        • Infrared port - Push to talk -WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Document viewer (Word
        • Excel
        • PowerPoint
        • PDF) incl. MS Office 2007 support via free update -Predictive text input -Voice command/memo -Organizer

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