Oppo R11 vs Xolo Era 4K

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.

  • Display technology

    OLED versus LCD

    R11:
    OLED
    Era 4K:
    LCD
  • Width

    Era 4K: 3 mm narrower

    R11:
    74.8 mm
    Era 4K:
    71.8 mm
  • Screen diagonal

    Era 4K: 0.5 in smaller diagonal

    R11:
    5.5 in
    Era 4K:
    5 in
  • Chipset

    R11:
    Qualcomm SDM660 Snapdragon 660 (14 nm)
    Era 4K:
    Mediatek MT6735P (28 nm)
  • Rear camera layout

    R11:
    Dual
    Era 4K:
    Single
  • Depth

    R11: 2.4 mm thinner

    R11:
    6.8 mm
    Era 4K:
    9.2 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. R11

    Height:
    154.5 mm +11.5 mm versus Era 4K
    Width:
    74.8 mm +3 mm versus Era 4K
    Depth:
    6.8 mm
    Weight:
    150 g
  2. 2. Era 4K

    Height:
    143 mm
    Width:
    71.8 mm
    Depth:
    9.2 mm +2.4 mm versus R11
    Weight:
    Unknown

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. R11

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. Era 4K

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

R11 has approximately 21% more rectangular screen area than Era 4K.

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 R11, Era 4K, compared at the same storage capacity.
StorageR11Era 4K
8 GB Unknown 2 GB RAM
R11: Original memory entry

128 GB · 6 GB RAM · 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. R11

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

2. Era 4K

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

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. R11

    3000 mAh

  2. 2. Era 4K

    4000 mAh

    +1000 mAh versus R11

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. R112. Era 4K

Everyday essentials
Everyday essentials — specifications for R11, Era 4K.
SpecificationR11Era 4K
Dimensions (HxWxD)
  • 154.5 Х 74.8 Х 6.8 mm
  • 143 Х 71.8 Х 9.2 mm
Weight
  • 150 g
  • 0 g
Technology
  • AMOLED
  • IPS LCD
Screen size
  • 5.5" inch
  • 5" inch
Screen resolution
  • 1080 x 1920 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 6 GB RAM
  • 64 GB
  • 512GB 4GB
  • 8 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Po
  • 4000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 7.1.1 (Nougat); ColorOS 3.1
  • Android 5.1.1 (Lollipop)
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Mediatek MT6735P (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for R11, Era 4K.
SpecificationR11Era 4K
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 72.2%
  • 67.1%
PPI /points per inch/
  • 401 PPI
  • 294 PPI
Screen protection
  • Corning Gorilla Glass 5
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for R11, Era 4K.
SpecificationR11Era 4K
Rear camera, main
  • 16 MP
  • Dual
  • 8 MP
  • Single
Camera specs
  • 16 MP
  • f/1.7
  • 1/2.8''
  • 1.12µm
  • PDAF -20 MP
  • f/2.6
  • 1.0µm
  • AF
  • 8 MP
  • AF
  • f/2.0
Functions
  • LED flash
  • HDR
  • panorama
  • Dual-LED flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 20 MP
  • f/2.0
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for R11, Era 4K.
SpecificationR11Era 4K
Processor CPU
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • Quad-core 1.0 GHz Cortex-A53
Graphics processor GPU
  • Adreno 512
  • Mali-T720MP2
Antutu 7 score *
  • 136392
Unknown
GeekBench 4 Multi-Core *
  • 5602
Unknown
GeekBench 4 RenderScript *
  • 4973
Unknown
GeekBench 5 Single Core *
  • 666
Unknown
GeekBench 5 Multi-Core *
  • 1478
Unknown
General specs
General specs — specifications for R11, Era 4K.
SpecificationR11Era 4K
Release date
  • 2017
  • June
  • 2016
  • February
Colors
  • Black
  • Gold
  • Rose Gold
  • Red
  • Blue
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 400 EUR
Unknown
Battery life Unknown
  • Stand by time- Up to 624 h (2G) / Up to 528 h (3G) Talking time- Up to 32 h (2G) / Up to 17 h (3G)
Body build
  • Front glass
  • aluminum body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for R11, Era 4K.
SpecificationR11Era 4K
SIM card
  • Single SIM (Nano-SIM)Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) CDMA 800 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO & TD-SCDMA -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - Dual SIM LTE band 1(2100)
  • 7(2600)
  • 20(800)
  • 28(700)
  • 41(2500) - Single SIM
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 40(2300)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 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 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • EDR
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for R11, Era 4K.
SpecificationR11Era 4K
Radio
  • No
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for R11, Era 4K.
SpecificationR11Era 4K
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: (VOOC Flash Charge)
  • Sensors Accelerometer
  • proximity - For India