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  2. Nokia E51 vs vivo X20

Nokia E51 vs vivo X20

Compare recorded specifications, size and practical differences.

Nokia E51

Nokia E51

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    vivo X20

    vivo X20

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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: 59 g lighterE51: 100 g · X20: 159 g
        • WidthE51: 29.2 mm narrowerE51: 46 mm · X20: 75.2 mm
        • Screen diagonalE51: 4.01 in smaller diagonalE51: 2 in · X20: 6.01 in
        • Rear camera layoutSingle / DualE51: Single · X20: Dual
        • DepthX20: 4.8 mm thinnerX20: 7.2 mm · E51: 12 mm
        • HeightE51: 41.1 mm shorterE51: 114.8 mm · X20: 155.9 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
        E51: 114.8 × 46 mm 1 X20: 155.9 × 75.2 mm 2
        Side
        E51: 114.8 × 12 mm 1 X20: 155.9 × 7.2 mm 2
        1. 1. E51
          Height
          114.8 mm
          Width
          46 mm
          Depth
          12 mm+4.8 mm versus X20
          Weight
          100 g
        2. 2. X20
          Height
          155.9 mm+41.1 mm versus E51
          Width
          75.2 mm+29.2 mm versus E51
          Depth
          7.2 mm
          Weight
          159 g
        Weight

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

        1. 1. E51100 g
        2. 2. X20159 g

          +59 g versus E51

        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
        E51: 2 in, 4:3, About 12.4 cm² rectangular area 1 X20: 6.01 in, 18:9, About 93.2 cm² rectangular area 2
        1. 1. E51 2 in · 4:3 About 12.4 cm² rectangular area
        2. 2. X20 6.01 in · 18:9 About 93.2 cm² rectangular area

        X20 has approximately 652.5% 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.

        No unambiguous storage/RAM pairings are recorded. See the original specifications below.

        E51: Original memory entry

        130 MB · 96 MB RAM

        X20: Original memory entry

        64 GB · 512GB 4GB

        Practical features

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

        1. E51

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

        2. X20

        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 capacity

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

        1. 1. E511050 mAh
        2. 2. X203250 mAh

          +2200 mAh versus E51

        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. E512. X20

        Everyday essentials
        Everyday essentials
        SpecificationE51X20
        Dimensions (HxWxD)
        • 114.8 Х 46 Х 12 mm
        • 155.9 Х 75.2 Х 7.2 mm
        Weight
        • 100 g
        • 159 g
        Technology
        • TFT
        • Super AMOLED
        Screen size
        • 2" inch
        • 6.01" inch
        Screen resolution
        • 240 x 320 px
        • 1080 x 2160 px
        Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
        • 130 MB
        • 96 MB RAM
        • 64 GB
        • 512GB 4GB
        Memory card support
        • microSD
        • up to 16 GB (dedicated slot)
        • microSD
        • up to 256 GB (uses SIM 2 slot)
        BatteryCapacity is not battery life. No endurance test is implied.
        • 1050 mAh
        • Removable Li-Ion
        • 3250 mAh
        • Non-removable Li-Ion
        Operating system OS
        • Symbian OS 9.2
        • Series 60 v3.1 UI
        • Android 7.1.1 (Nougat)
        • upgradable to Android 8.0 (Oreo); Funtouch 3.2
        Chipset Unknown
        • Qualcomm SDM660 Snapdragon 660 (14 nm)
        Headphone jack
        • No
        • Yes
        Display
        Display
        SpecificationE51X20
        Touchscreen Unknown
        • capacitive touchscreen
        Display colors
        • 16M
        • 16M
        Screen area
        • 12.4 cm2
        • 93.2 cm2
        Screen format
        • 4:3 (height:width)
        • 18:9 (height:width)
        Screen to body ratio
        • 23.5%
        • 79.5%
        PPI /points per inch/
        • 200 PPI
        • 402 PPI
        Camera and Video
        Camera and Video
        SpecificationE51X20
        Rear camera, main
        • 2 MP
        • Single
        • 12 MP
        • Dual
        Camera specs
        • 2 MP
        • 12 MP
        • f/1.8
        • AF -5 MP
        • depth sensor
        Functions Unknown
        • LED flash
        • HDR
        • panorama
        Video
        • 320p@15fps
        • 1080p@30fps
        Front camera, selfie
        • 0 MP,
        • 12 MP
        • Single
        Specifications Unknown
        • 12 MP
        • f/2.0
        Performance
        Performance
        SpecificationE51X20
        Processor CPU
        • 369 MHz ARM 11
        • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
        Graphics processor GPU Unknown
        • Adreno 512
        Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
        • 142753
        GeekBench 4 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
        • 1907
        GeekBench 4 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
        • 4546
        GeekBench 4 RenderScriptLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
        • 5409
        General specs
        General specs
        SpecificationE51X20
        Release date
        • 2007
        • September
        • 2017
        • September
        Colors
        • Black
        • Silver
        • Matte Black
        • Black/Gold
        • Gold
        • Rose Gold
        • Blue
        • Pink
        Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
        • 120 EUR
        • 390 EUR
        Battery life
        • Stand by time- Up to 310 h Talking time- Up to 4 h 20 min
        		 Unknown
        Body build Unknown
        • Front glass
        • aluminum body
        Communication and Connectivity
        Communication and Connectivity
        SpecificationE51X20
        SIM card
        • Mini-SIM
        • Hybrid Dual SIM (Nano-SIM
        • dual stand-by)
        Network
        • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
        • Show all network frequencies: -2G - GSM 900 / 1800 - 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)
        • 7(2600)
        • 8(900)
        • 34(2000)
        • 38(2600)
        • 39(1900)
        • 40(2300)
        • 41(2500) LTE band 1(2100)
        • 4(1700/2100)
        • 8(900) - X20A
        Speed
        • HSPA 3.6/0.384 Mbps
        • HSPA 42.2/5.76 Mbps
        • LTE-A (2CA) Cat6 300/50 Mbps
        GPRS
        • Class 32
        • Yes
        Edge
        • Class 32
        • Yes
        Wi-Fi
        • Wi-Fi 802.11b/g
        • VoIP over WLAN
        • Wi-Fi 802.11 a/b/g/n/ac
        • dual-band
        • WiFi Direct
        • hotspot
        GPS
        • No
        • Yes
        • with A-GPS
        USB
        • miniUSB 2.0
        • microUSB 2.0
        • USB On-The-Go
        Bluetooth
        • 2.0
        • A2DP
        • 5.0
        • A2DP
        • LE
        Harmful irradiation
        • SAR - 1.38 W/kg (head) 0.75 W/kg (body) SAR EU - 1.47 W/kg (head)
        		 Unknown
        Music and Audio
        Music and Audio
        SpecificationE51X20
        Radio
        • FM radio
        • No
        Others
        • Five-way scroll key -Downloadable themes
        • 2.5 mm audio jack
        • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
        Other features
        Other features
        SpecificationE51X20
        Dop
        • 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
        • Sensors Fingerprint (rear-mounted)
        • accelerometer
        • gyro
        • proximity
        • compass - Fast battery charging 9V/2A 18W

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