In depth comparison and review of UMIDIGI One Max and OPPO Reno4 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 | UMIDIGI One Max | OPPO Reno4 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | CPH2091 | |
| Form Factor | Touch | Touch | |
| Height | 156.8 mm | 159.3 mm | OPPO Reno4 5G has greater height than UMIDIGI One Max. |
| Width | 75.6 mm | 74 mm | UMIDIGI One Max has greater width than OPPO Reno4 5G. |
| Depth | 8.35 mm | 7.8 mm | OPPO Reno4 5G is narrower than UMIDIGI One Max. |
| Weight | 205 g | 183 g | OPPO Reno4 5G is lighter than UMIDIGI One Max. |
| Body Colour | Twilight | Space black | Galactic blue | |
| Body Material | Tempered glass, aluminium frame | - | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | - | IP54 | |
| SAR Value | - | 0.886 W/kg (head), 1.155 W/kg (body), 2.165 W/kg (limb) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | UMIDIGI One Max | OPPO Reno4 5G |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | - | AMOLED | |
| Screen Size (Display Size) | 6.3" | 6.4" | OPPO Reno4 5G has larger screen size than UMIDIGI One Max. |
| Screen Resolution (Display Resolution) | 1520 x 720 pixels | 2400 x 1080 pixels | OPPO Reno4 5G has better screen resolution than UMIDIGI One Max. |
| Display Format | - | Full HD+ | |
| Pixel Density | 271 ppi | 409 ppi | OPPO Reno4 5G has better pixel density than UMIDIGI One Max. |
| Aspect Ratio | 19:9 | 20:9 | |
| Max Brightness | - | 800 cd/m² | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | - | 800000:1 | |
| Display Refresh Rate | - | 60 Hz | |
| Display Features | In-Cell Display Technology, Reading mode, Colour temperature adjustment | DCI-P3 Wide colour gamut, Dark mode, 180Hz sampling rate | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass (scratch resistant glass) |
| PROCESSOR | UMIDIGI One Max | OPPO Reno4 5G |
|---|
| Processor Type (CPU) | MediaTek Helio P23 | Qualcomm Snapdragon 765G | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.4 GHz | OPPO Reno4 5G has higher clock speed than UMIDIGI One Max. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | UMIDIGI One Max has 64-bit architecture. |
| Graphics System (GPU) | Mali-G71 MP2 | Qualcomm ADRENO 620 |
| MEMORY | UMIDIGI One Max | OPPO Reno4 5G |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR4X SDRAM - 8 GB | OPPO Reno4 5G has more RAM than UMIDIGI One Max. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| Memory Interface | - | UFS 2.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | - |
| CAMERA | UMIDIGI One Max | OPPO Reno4 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 48 Megapixel | OPPO Reno4 5G has better camera resolution than UMIDIGI One Max. |
| Sensor Size | - | 1/2" | |
| Sensor Name | Omnivision OV12870 sensor | Sony Exmor RS IMX586 sensor | |
| Lens Aperture | F/2.0 | F/1.7 | OPPO Reno4 5G has better lens aperture than UMIDIGI One Max. |
| Lens Construction | 6-element | 6-element | |
| Pixel Size | - | 0.8 μm | |
| Focus Adjustment | - | Automatic | |
| Laser Auto Focus | - | Yes | |
| Minimum Focal Length (Focal Distance) | - | 26 mm | |
| Special Effects | - | HDR, Bokeh effect | |
| Camera Modes | Panorama | Time-lapse mode, night mode, Expert Mode, Text, AI Beautify, AI Portait, Pano mode, Dazzle Colour Mode | |
| Face Recognition (Face ID) | Face recognition | - | UMIDIGI One Max has face detection. |
| Light Source | Dual LED flash | LED flash | |
| Still Image Resolutions | - | 8000 x 6000 | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, 1280 x 720 (720p) at 60 fps | |
| Camera Features (Functions) | Real-time photo filters | Noise reduction, Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), Closed loop processing, 4-in-1 Pixel technology, Ultra Steady Video, contrast detection auto-focus (CDAF), laser detection auto focus (LDAF) |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | 8 Megapixel | OPPO Reno4 5G has better second camera resolution than UMIDIGI One Max. |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Lens Element Qty (2nd Camera) | - | 5-element | |
| Field of View (2nd Camera) | - | 119 degree(s) | |
| Minimum Focal Length (2nd Camera) | - | 16 mm | |
| Camera Functions (2nd Camera) | - | Monochrome | |
| Camera Modes (2nd Camera) | - | Ultra Night Mode 3.0 | |
| Camera Features (2nd Camera) | - | 5-piece lens, Ultra Steady Video Pro |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Lens Element Qty (3rd Camera) | - | 3-element |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 32 Megapixel | OPPO Reno4 5G has better front camera resolution than UMIDIGI One Max. |
| Sensor Name (Front) | Samsung S5K3P3 | Sony Exmor RS IMX616 sensor | |
| Lens Aperture (Front) | F/2.0 | F/2.4 | UMIDIGI One Max has better front lens aperture than UMIDIGI One Max. |
| Lens Element Qty (Front) | 5-element | 5-element | |
| Pixel Size (Front) | - | 0.8 μm | |
| Camera Modes (Front) | - | Panorama, Time-lapse mode, Slow motion mode, night mode, Expert Mode, AI Beauty, Portrait | |
| Face Recognition (Face ID) | Face recognition | - | UMIDIGI One Max has face detection. |
| Light Source (Front) | - | Display flash | |
| Still Image Resolutions (Front) | - | 6560 x 4928 | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | Selfie countdown | Electronic Image Stabiliser (EIS), 5P lens |
| SECOND FRONT CAMERA |
|---|
| Sensor Resolution (2nd Front) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (2nd Front) | - | F/2.4 | |
| Pixel Size (2nd Front) | - | 1.75 μm | |
| Camera Functions (2nd Front) | - | Portait camera | |
| Camera Features (2nd Front) | - | 3-piece lens |
| BATTERY AND CHARGING | UMIDIGI One Max | OPPO Reno4 5G |
|---|
| Battery Capacity (Battery Size) | 4150 mAh | 4020 mAh | UMIDIGI One Max has larger battery capacity than OPPO Reno4 5G. |
|---|---|---|---|
| Fast Charging Technology | - | SuperVOOC 2.0 Flash Charge | OPPO Reno4 5G has fast charging technology. |
| Recharge Time (Charging Time) | - | 36 min | |
| Wireless Charging | Yes | - | UMIDIGI One Max can be charged wirelessly. |
| Wireless Charging Standards | Qi, Fast Wireless Charging | - | |
| Standby Time | - | 390 hours | |
| Talk Time | - | 1560 minutes | |
| Run Time Details | - | Standby: up to 390 hrs Talk: up to 1560 min Playback (Music): up to 37 hrs Playback (video): up to 17.1 hrs |
| CELLULAR | UMIDIGI One Max | OPPO Reno4 5G |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | OPPO Reno4 5G has more advanced generation mobile network. |
| Operating System | Android 8.1.0 Oreo | ColorOS 7.2 (based on Android 10) | |
| Navigation | GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | UMIDIGI One Max | OPPO Reno4 5G |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | 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 | Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 800, 900, 800 | 2100, 1900, 1700, 850, 800, 900, 800 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 34, 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 32, Band 38, Band 39, Band 40, Band 41, Band 66 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, TDD 2000, 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, FDD 1500 L, 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 | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.1 | |
| Bluetooth Profiles | HID | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | UMIDIGI One Max | OPPO Reno4 5G |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, MP3, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB | WAV, WMA, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio), apt-X, LDAC, MID, SBC, apt-X HD, APTX-TWS+ | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, MPEG-4, M4V, ASP, H.264 AVC Main Profile (MP), H.264 AVC Baseline Profile(BP) | MKV, FLV, AVI, MOV, WMV, 3GP, MP4 | |
| Sound Enhancements | - | Dolby Atmos sound technology |
| FEATURES | UMIDIGI One Max | OPPO Reno4 5G |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, gyro sensor, geomagnetic sensor, L-sensor, P-sensor | Accelerometer, ambient light sensor, proximity sensor, pedometer, gyro sensor, geomagnetic sensor, gravity sensor | |
| Security Devices | Face recognition, fingerprint reader (side) | Fingerprint reader (under display) | |
| Additional Phone Features | Dual microphones | MU-MIMO technology, Google Lens |
| OTHERS | UMIDIGI One Max | OPPO Reno4 5G |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, pre-installed screen protector, protective case | Headphones, power adapter, SIM card removal tool, USB-C cable, protective case | |
|---|---|---|---|
| Compliant Standards | - | IP54, TUV Rheinland Certified Safe Fast-Charge System |
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