Redmi Watch 4 vs Xiaomi Mi 9 Pro
| Type | - | Touch |
| Dimensions | 47.58 x 41.12 x 10.50 mm | 157.21 x 74.64 x 8.54 mm |
| Weight | 31.50 g | 196.00 g |
| Display size | 1.97" | 6.39" |
| Display | Color / LTPS AMOLED 60 Hz 390 x 450 px (1.97") 302 ppi | Color / AMOLED 16M colors 1080 x 2340 px (6.39") 403 ppi |
| Display protection |   | Corning Gorilla Glass Buy screen protector
|
| Additional display | | |
| Protection of the secondary display | | |
| Standard battery | Li-Po 470 mAhBuy powerbank
| Li-Po 4000 mAhBuy powerbank
|
| Quick battery charging | | Quick Charge 4+ |
| Wireless battery charging | | PMA & Qi |
| Internal memory |  | 128 GB, 256 GB, 512 GB |
| RAM memory | | 8 GB, 12 GB |
| Memory cards | | |
| Operating system | HyperOS | Android 9.0 Pie |
| Interface | - | MIUI 11 |
| Processor | - | Qualcomm Snapdragon 855+ |
| Processor clock | - | 2960 MHz |
| GPU | - | Adreno 640 @672 MHz |
| Touchscreen |  | |
| DualSIM | | |
| SIM cards standard | | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | nd | dual standby |
| Hybrid DualSIM | nd | |
| Announced | 4Q 2023 | 3Q 2019 |
| Other names | M2314W1; Xiaomi Redmi Watch 4 | Mi 9 Pro 5G |
| GSM frequencies | | 850 900 1800 1900 |
| UMTS | | 850 900 1700 1900 2100 |
| LTE standard | | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 700 TDD LTE: 2600, 2500, 2300, 2100, 1900 |
| Standard 5G | | TDD 5G: 4700, 3500, 2300 |
| CDMA | | |
| Standard TD-SCDMA | | 1900 2000 |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo sensor model | nd | Sony IMX586 |
| Photo matrix | nd | 48 Mpx |
| Resolution | nd | 8000x6000 px |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video resolution | nd | 3840x2160 px |
| Video formats | nd | H.263, H.264, MPEG4 |
| Additional | nd | AF, Laser AF, EIS, f/1.75 |
| Second camera | | |
| Photo sensor model | nd | Samsung S5K3M5 |
| Photo matrix | nd | 12 Mpx |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.263, H.264, MPEG4 |
| Additional | nd | AF, EIS, f/2.2 |
| Third camera | | |
| Photo sensor model | nd | Sony IMX481 |
| Photo matrix | nd | 16 Mpx |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.263, H.264, MPEG4 |
| Additional | nd | AF, f/2.2 |
CAMERAS - FRONT
| First camera | | |
| Photo sensor model | nd | Sony |
| Photo matrix | nd | 20 Mpx |
| Optical zoom | nd | |
| Flash | nd | |
| Dual-colour LED flash | nd | |
| Video resolution | nd | 1920x1080 px |
| Video formats | nd | H.263, H.264, MPEG4 |
| Additional | nd | FF, f/2.0 |
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 | | 11.52 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | 1174.00 Mbit/s |
| LTE UP | | 211.00 Mbit/s |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v5.3 | v5.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | | v802.11 a/b/g/n/ac |
| WiFi frequencies | | 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 | | |
| HD Voice | | |
| Sound formats | | AAC, AAC+, AMR, APE, FLAC, 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 | | |