Oppo Watch 4 Pro vs Oppo A40M
| Type | - | Touch |
| Dimensions | 50.10 x 38.30 x 12.85 mm | 165.77 x 76.08 x 7.68 mm |
| Weight | 52.30 g | 186.00 g |
| Display size | 1.91" | 6.67" |
| Display | Color / LTPO AMOLED 378 x 496 px (1.91") 327 ppi | Color / IPS TFT 16,7M colors 90 Hz 720 x 1604 px (6.67") 264 ppi |
| Display protection |   | Panda Glass Buy screen protector
|
| Additional display | | |
| Protection of the secondary display | | |
| Standard battery | Li-Ion 570 mAhBuy powerbank
| Li-Ion 5100 mAhBuy powerbank
|
| Quick battery charging | | SuperVOOC 2.0 |
| Wireless battery charging | | |
| Internal memory | 32 GB | 256 GB |
| RAM memory | 2 GB | 6 GB, 8 GB |
| Memory cards | |  |
| Operating system | - | Android 14 |
| Interface | - | ColorOS 14 |
| Processor | Qualcomm Snapdragon W5 Gen 1 SW5100 | Qualcomm Snapdragon 6s 4G Gen 1 |
| Processor clock | 1700 MHz | 2100 MHz |
| GPU | Adreno 702 | Adreno 610 @1050 MHz |
| Touchscreen |  | |
| DualSIM | | |
| SIM cards standard | SingleSIM(eSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | nd | dual standby |
| Hybrid DualSIM | nd | |
| Announced | 3Q 2023 | 3Q 2024 |
| Other names | - | CPH2669 |
| GSM frequencies | 850 900 1800 | 850 900 1800 1900 |
| UMTS | 850 900 1700 2100 | 850 900 2100 |
| LTE standard | | FDD LTE: 2600, 2100, 1800, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300 |
| Standard 5G | | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Camera type | nd | Standard |
| Photo matrix | nd | 50 Mpx |
| Optical zoom | nd | |
| Number of lenses | nd | 5 |
| Field of view | nd | 76 ° |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video resolution | nd | 1920x1080 px |
| Video formats | nd | H.264, H.265, MPEG4 |
| Additional | nd | AF, f/1.8 |
CAMERAS - FRONT
| First camera | | |
| Camera type | nd | Portrait |
| Photo matrix | nd | 5 Mpx |
| Optical zoom | nd | |
| Number of lenses | nd | 3 |
| Field of view | nd | 78 ° |
| Flash | nd | |
| Dual-colour LED flash | nd | |
| Additional | nd | FF, f/2.2 |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | | v2.0 |
| HSCSD | | |
| HSDPA | | 42.20 Mbit/s |
| HSUPA | | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | - |
| LTE UP | | - |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v5.0 | v5.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 a/b/g/n | v802.11 a/b/g/n/ac |
| WiFi frequencies | 2,4 GHz; 5 GHz | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| QZSS | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | | T9 |
| Swype | | |
| e-mail client | | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | | AAC, AAC+, AMR, MID, WAV, eAAC+ |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | | ART |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |