In depth comparison and review of Xiaomi MI 4i and OPPO A77 5G. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Xiaomi MI 4i | OPPO A77 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | CPH2339 | |
| Form Factor | Touch | Touch | |
| Height | 138.1 mm | 163.8 mm | OPPO A77 5G has greater height than Xiaomi MI 4i. |
| Width | 69.6 mm | 75.1 mm | OPPO A77 5G has greater width than Xiaomi MI 4i. |
| Depth | 7.8 mm | 7.99 mm | Xiaomi MI 4i is narrower than Xiaomi MI 4i. |
| Weight | 130 g | 190 g | Xiaomi MI 4i is lighter than Xiaomi MI 4i. |
| Body Colour | Black | Dark grey | White | Midnight black | Ocean blue | |
| Protection | - | Waterproof, splash-resistant | |
| Waterproof (Water-resistant) | - | Yes | OPPO A77 5G is waterproof. |
| IP rating | - | IPX4 | |
| SAR Value | 1.29 W/kg | 1.256 W/kg (body), 0.986 W/kg (head), 2.683 W/kg (limb) | |
| Integrated Components | FM radio | - | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Micro SIM + nano SIM/microSD |
| DISPLAY | Xiaomi MI 4i | OPPO A77 5G |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | - | |
| Screen Size (Display Size) | 5" | 6.56" | OPPO A77 5G has larger screen size than Xiaomi MI 4i. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1612 x 720 pixels | Xiaomi MI 4i has better screen resolution than OPPO A77 5G. |
| Display Format | Full HD | HD+ | |
| Pixel Density | 441 ppi | 269 ppi | Xiaomi MI 4i has better pixel density than OPPO A77 5G. |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 600 cd/m² | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Refresh Rate | - | 90 Hz | |
| Touch Sampling Rate | - | 90 Hz | |
| Display Features | - | 100% DCI-P3, 96% NTSC, 100% sRGB, High brightness mode, Vivid mode | |
| Display Protection (Screen Protector) | Corning Concore Glass | Panda Glass MN228 |
| PROCESSOR | Xiaomi MI 4i | OPPO A77 5G |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 615 | MediaTek Dimensity 810 | |
|---|---|---|---|
| Clock Speed | 1.7 GHz | 2.4 GHz | OPPO A77 5G has higher clock speed than Xiaomi MI 4i. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Xiaomi MI 4i has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 405 | Mali-G57 MC2 |
| MEMORY | Xiaomi MI 4i | OPPO A77 5G |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 4 GB + up to 3 GB virtual extension | OPPO A77 5G has more RAM than Xiaomi MI 4i. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 64 GB | OPPO A77 5G has more internal memory than Xiaomi MI 4i. |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Xiaomi MI 4i | OPPO A77 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 48 Megapixel | OPPO A77 5G has better camera resolution than Xiaomi MI 4i. |
| Sensor Size | - | 1/1.2" | |
| Sensor Name | - | Samsung S5KGM1ST | |
| Lens Aperture | F/2.0 | F/1.7 | OPPO A77 5G has better lens aperture than Xiaomi MI 4i. |
| Lens Construction | 5-element | 6-element | |
| Field of View (FoV) | - | 80 degree(s) | |
| Pixel Size | - | 0.8 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Focal Length Equivalent to 35mm Camera | - | 25mm | |
| Special Effects | - | Stickers | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, manual mode | Panorama, Time-lapse mode, Slow motion mode, Expert Mode, Portrait, Night, Macro mode, Extra HD, Text scanner | |
| Face Recognition (Face ID) | Face detection, smile detection | - | Xiaomi MI 4i has face detection. |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | - | Google Lens |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/5" | |
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Field of View (2nd Camera) | - | 89 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.75 μm | |
| Focal Length Equivalent to 35mm Camera | - | 20mm | |
| Camera Functions (2nd Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 8 Megapixel | OPPO A77 5G has better front camera resolution than Xiaomi MI 4i. |
| Sensor Size (Front) | - | 1/4" | |
| Sensor Name (Front) | - | Sony IMX355 sensor | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/1.8 | F/2.0 | Xiaomi MI 4i has better front lens aperture than Xiaomi MI 4i. |
| Lens Element Qty (Front) | 5-element | 5-element | |
| Field of View (Front) | - | 79 degree(s) | |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | - | Focus free | |
| Focal Length Equivalent to 35mm Camera | - | 26mm | |
| Special Effects (Front) | - | Stickers | |
| Camera Modes (Front) | - | Panorama, Time-lapse mode, night mode, Portrait | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Xiaomi MI 4i | OPPO A77 5G |
|---|
| Battery Capacity (Battery Size) | 3120 mAh | 5000 mAh | OPPO A77 5G has larger battery capacity than Xiaomi MI 4i. |
|---|---|---|---|
| Fast Charging Technology | - | SuperVOOC Flash Charge technology | OPPO A77 5G has fast charging technology. |
| Recharge Time (Charging Time) | - | 69 min | |
| Standby Time | - | 344 hours | |
| Talk Time | 2100 minutes | - | |
| Run Time Details | Talk (WCDMA): up to 2100 min | Standby (Ultra Power Saving Mode): up to 344 hrs | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Xiaomi MI 4i | OPPO A77 5G |
|---|
| Technology | TD-SCDMA / WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | OPPO A77 5G has more advanced generation mobile network. |
| Operating System | Android 5.0.2 (Lollipop) | ColorOS 12.1 (based on Android 12) | |
| User Interface | MIUI V6 | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Xiaomi MI 4i | OPPO A77 5G |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 850, 800, 900, 800 | |
| 4G LTE Band | Band 3, Band 7, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 38, Band 39, Band 40, Band 41, Band 66 | |
| 4G LTE Frequency | FDD 1800+, FDD 2600, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n40 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.3 BLE | |
| Bluetooth Profiles | A2DP, HID | - | |
| NFC | - | Yes | OPPO A77 5G has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi MI 4i | OPPO A77 5G |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | WAV, WMA, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio), apt-X, LDAC, IMY, ALAC, OPUS, MID, SBC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | XviD, MPEG-4, DivX, H.264 | MKV, FLV, AVI, MOV, WMV, ASF, 3GP, H.264, M4V, TS, M2TS, WebM, H.265, MP4 |
| FEATURES | Xiaomi MI 4i | OPPO A77 5G |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor | Accelerometer, ambient light sensor, proximity sensor, pedometer, digital compass, geomagnetic sensor, gravity sensor | |
| Security Devices | - | Face recognition, fingerprint reader (side) | |
| Security Technology | - | Face Unlock | |
| Additional Phone Features | MIMO technology, Active noise-cancellation | Fast Charging, Super power saving mode, OTG Reverse Charge, 3 years of Security Updates, 2 years of OS upgrades, ultra linear stereo speakers, Ultra volume mode |
| OTHERS | Xiaomi MI 4i | OPPO A77 5G |
|---|
| Included Accessories | Power adapter | Protective cover, USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | - | IPX4 |
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