Panasonic 821P vs iQOO Z9
| Type | Clamshell | Touch |
| Waterproofness & dust-resistance |  | IP54 |
| Dimensions | 104.00 x 50.00 x 15.20 mm | 163.17 x 75.81 x 7.83 mm |
| Weight | 113.00 g | 188.00 g |
| Display size | 2.80" | 6.67" |
| Display | Color / TFT 256k colors 240 x 400 px (2.80") | Color / AMOLED 16M colors 120 Hz 1080 x 2400 px (6.67") 395 ppi |
| Display protection |   |  |
| Additional display | Mono / OLED 25 x 96 px (0.77") | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 300 min. (5.0 h) 3G: 200 min. (3.3 h) | |
| Stand-by (max.) | 2G: 300 h. (12.5 days) 3G: 400 h. (16.7 days) | |
| Playback time (max.) | nd | Audio: 68 h (2.8 days) Video: 17 h (0.7 days) |
| Standard battery | Li-Ion Buy powerbank
| Li-Ion 5000 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Phonebook memory | 1000 places | |
| Internal memory | | 128 GB, 256 GB |
| RAM memory | | 8 GB |
| Memory cards | microSD up to 2 GBBuy memory card | microSD, microSDHC, microSDXC up to 1000 GBBuy memory card |
| Operating system | - | Android 14 |
| Interface | - | Funtouch 14 |
| Processor | - | MediaTek Dimensity 7200 |
| Processor clock | - | 2800 MHz |
| GPU | - | ARM Mali-G610 MC4 |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | nd | dual standby |
| Hybrid DualSIM | nd | nanoSIM, microSD |
| Announced | | 1Q 2024 |
| Other names | - | - |
| GSM frequencies | 900 1800 1900 | 850 900 1800 |
| UMTS | 2100 | 850 900 2100 |
| LTE standard | | FDD LTE: 2100, 1800, 900, 850, 700 TDD LTE: 2600, 2500, 2300 |
| Standard 5G | | FDD 5G: 2100, 1800, 900, 850, 700 TDD 5G: 3700, 3500, 2300 |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Camera type | | Standard |
| Photo sensor model | | Sony IMX882 |
| Photo matrix | 2 Mpx | 50 Mpx |
| Sensor size | | 1/1,953 |
| Pixel size | | 0,8 µm |
| Resolution | 1600x1200 px | 8192x6144 px |
| Optical zoom | | |
| Digital zoom | 10x | |
| Flash | | 2x LED |
| Dual-colour LED flash | | 1+1 |
| Video resolution | 352x288 px | 3840x2160 px |
| Video formats | MPEG4, H.263 - 15 fps | H.264, H.265, MPEG4 |
| Additional | - | AF, EIS, OIS, f/1.79 |
| Second camera | | |
| Camera type | nd | Depth of field |
| Photo matrix | nd | 2 Mpx |
| Resolution | nd | 1600x1200 px |
| Optical zoom | nd | |
| Flash | nd | 2x LED |
| Dual-colour LED flash | nd | 1+1 |
| Additional | nd | FF, f/2.4 |
CAMERAS - FRONT
| First camera | | |
| Camera type | | Portrait |
| Photo matrix | 0.3 Mpx | 16 Mpx |
| Resolution | 640x480 px | |
| Optical zoom | | |
| Digital zoom | | 2x |
| Flash | | |
| Dual-colour LED flash | | |
| Additional | - | 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 | | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v1.2 | v5.3 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | | v802.11 a/b/g/n/ac/ax |
| WiFi frequencies | | 2,4 GHz; 5 GHz; 6 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 | 500 places | |
| EMS | | |
| MMS | | |
| Dictionary | | T9 |
| Swype | | |
| e-mail client | | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | 2 |
| Audio Jack | | 3.5 mm |
| HD Voice | | |
| Sound formats | | AAC, AAC+, AMR, APE, FLAC, MID, OGG, 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 | | |