Redmi 9 vs Redmi Watch 4
| Type | Touch | - |
| Dimensions | 163.32 x 77.01 x 9.10 mm | 47.58 x 41.12 x 10.50 mm |
| Weight | 198.00 g | 31.50 g |
| Display size | 6.53" | 1.97" |
| Display | Color / IPS TFT 16M colors 60 Hz 1080 x 2340 px (6.53") 395 ppi | Color / LTPS AMOLED 60 Hz 390 x 450 px (1.97") 302 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
 |  |
| Additional display | | |
| Protection of the secondary display | | |
| Talk time (max.) | 3G: 2040 min. (34.0 h) |  |
| Playback time (max.) | Audio: 171 h (7.1 days) Video: 19 h (0.8 days) | nd |
| Standard battery | Li-Ion 5020 mAhBuy powerbank
| Li-Po 470 mAhBuy powerbank
|
| Quick battery charging | Quick Charge 3.0 | |
| Wireless battery charging | | |
| Internal memory | 64 GB, 32 GB | |
| RAM memory | 4 GB, 3 GB | |
| Memory cards |  microSD, microSDHC, microSDXC up to 512 GBBuy memory card | |
| Operating system | Android 10 | HyperOS |
| Interface | MIUI 11 | - |
| Processor | MediaTek Helio G80 MT6769T | - |
| Processor clock | 2000 MHz | - |
| GPU | ARM Mali-G52 MC2 | - |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | |
| DualSIM mode | dual standby | nd |
| Hybrid DualSIM | | nd |
| Announced | 2Q 2020 | 4Q 2023 |
| Other names | M2004J19AG; M2004J19G; Xiaomi Redmi 9 | M2314W1; Xiaomi Redmi Watch 4 |
| GSM frequencies | 850 900 1800 1900 | |
| UMTS | 850 900 1900 2100 | |
| LTE standard | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300 | |
| Standard 5G | | |
| CDMA | | |
| Standard TD-SCDMA | 1900 2000 | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Camera type | Standard | nd |
| Photo matrix | 13 Mpx | nd |
| Optical zoom | | nd |
| Field of view | 75 ° | nd |
| Flash | LED | nd |
| Dual-colour LED flash | | nd |
| Video resolution | 1920x1080 px | nd |
| Video formats | H.264, H.265, MPEG4 - 30 fps | nd |
| Additional | AF, f/2.2 | nd |
| Second camera | | |
| Camera type | Wide-angle | nd |
| Photo matrix | 8 Mpx | nd |
| Optical zoom | | nd |
| Field of view | 118 ° | nd |
| Flash | LED | nd |
| Dual-colour LED flash | | nd |
| Video formats | H.264, H.265, MPEG4 - 30 fps | nd |
| Additional | FF, f/2.2 | nd |
| Third camera | | |
| Camera type | Macro | nd |
| Photo matrix | 5 Mpx | nd |
| Optical zoom | | nd |
| Flash | LED | nd |
| Dual-colour LED flash | | nd |
| Video formats | H.264, H.265, MPEG4 - 30 fps | nd |
| Additional | FF, f/2.4 | nd |
| Fourth camera | | |
| Camera type | Depth of field | nd |
| Photo matrix | 2 Mpx | nd |
| Optical zoom | | nd |
| Flash | LED | nd |
| Dual-colour LED flash | | nd |
| Video formats | H.264, H.265, MPEG4 - 30 fps | nd |
| Additional | FF, f/2.4 | nd |
CAMERAS - FRONT
| First camera | | |
| Camera type | Portrait | nd |
| Photo matrix | 8 Mpx | nd |
| Optical zoom | | nd |
| Field of view | 78 ° | nd |
| Flash | | nd |
| Dual-colour LED flash | | nd |
| Video formats | H.264, H.265, MPEG4 - 30 fps | nd |
| Additional | FF, f/2.0 | nd |
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 | v5.3 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 b/g/n | |
| WiFi frequencies | 2,4 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 | |
| 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 | | |
