CAT B40 Dual SIM vs CAT B30
| Type | Bar (classic) | Bar (classic) | Bar (classic) | Bar (classic) |
| Waterproofness & dust-resistance | IP68, IP69 |  | | |
| Dimensions | 145.00 x 62.00 x 18.00 mm | 118.30 x 53.00 x 16.00 mm | 121.00 x 50.00 x 14.50 mm | 121.50 x 50.00 x 14.40 mm |
| Weight | 157.00 g | 101.00 g | 80.10 g | 80.20 g |
| Display size | 2.40" | 2.00" | 1.80" | 1.80" |
| Display | Color / TFT 256k colors 240 x 320 px (2.40") 167 ppi | Color / TFT 64k colors 176 x 220 px (2.00") 141 ppi | Color / TFT 64k colors 120 x 160 px (1.80") 111 ppi | Color / IPS TFT 64k colors 120 x 160 px (1.80") 111 ppi |
| Display protection |   | | | |
| Additional display | | | | |
| Protection of the secondary display | | | | |
| Talk time (max.) | 2G: 660 min. (11.0 h) | 2G: 570 min. (9.5 h) | 2G: 960 min. (16.0 h) 3G: 360 min. (6.0 h) 4G: 300 min. (5.0 h) | |
| Stand-by (max.) | 2G: 720 h. (30.0 days) | 2G: 240 h. (10.0 days) | 2G: 432 h. (18.0 days) 3G: 336 h. (14.0 days) 4G: 336 h. (14.0 days) | |
| Standard battery | Li-Ion 1800 mAhBuy powerbank
| Li-Ion 1000 mAhBuy powerbank
| Li-Ion 1020 mAhBuy powerbank
| Li-Ion 1450 mAhBuy powerbank
|
| Quick battery charging | | | | |
| Wireless battery charging | | | | |
| Internal memory | | 256 MB | 48 MB | 48 MB |
| RAM memory | | 128 MB | 128 MB | 128 MB |
| Memory cards |  microSD, microSDHC up to 32 GBBuy memory card | | | microSD, microSDHC up to 32 GBBuy memory card |
| Interface | - | - | Series 30 | Series 30 |
| Processor | Unisoc T117 | Spreadtrum SC7701B | Unisoc T107 UMS9117 | - |
| Processor clock | 1000 MHz | 460 MHz | - | - |
| GPU | - | - | - | - |
| Touchscreen | | | | |
| DualSIM | | | | |
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | DualSIM(miniSIM, miniSIM) | SingleSIM(nanoSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | dual standby | | nd | dual standby |
| Hybrid DualSIM | | | nd | |
| Announced | 3Q 2021 | | 2Q 2021 | 2Q 2023 |
| Other names | - | - | 105 4G 2021; TA-1381; TA-1375; TA-1378; TA-1385; TA1389; TA-1393 | TA-1538; TA-1551; TA-1546; TA-1553; TA1547; TA-1555 |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 2100 | 850 900 1700 1900 2100 | 850 900 1700 1900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 900, 800 | | FDD LTE: 2600, 2100, 1900, 1800, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300, 1900 | FDD LTE: 2600, 2100, 1900, 1800, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300, 1900 |
| Standard 5G | | | | |
| CDMA | | | | |
| Standard TD-SCDMA | | | | |
| UMA | | | | |
CAMERAS - BACK
| First camera | | | | |
| Photo matrix | 2 Mpx | 2 Mpx | nd | nd |
| Resolution | 1600x1200 px | 1600x1200 px | nd | nd |
| Optical zoom | | | nd | nd |
| Flash | | LED | nd | nd |
| Dual-colour LED flash | | | nd | nd |
| Video resolution | 640x480 px | | nd | nd |
| Video formats | MPEG4, H.263, H.264 - 30 fps | H.263, MPEG4 | nd | nd |
| Additional | FF | - | nd | nd |
CAMERAS - FRONT
SENSORS
| Accelerometer | | | | |
| Proximity | | | | |
| Light | | | | |
| Magnetometer | | | | |
| Gyroscope | | | | |
| Barometer | | | | |
| Altimeter | | | | |
| Gravity | | | | |
| Hall-effect | | | | |
| Iris scanner | | | | |
| Fingerprint scanner | | | | |
| Thermometer | | | | |
| Hygrometer | | | | |
Data transfer
| xHTML | | | | |
| WAP | v2.0 | v2.0 | v2.0 | v2.0 |
| HSCSD | | | | |
| HSDPA | 5.76 Mbit/s | | | |
| HSUPA | 21.10 Mbit/s | | | |
| HSPA | | | | |
| HSPA+ | | | | |
| LTE DL | - | | | |
| LTE UP | 51.00 Mbit/s | | | |
| WIMAX+ | | | | |
| GPRS | | | | |
| EDGE | | | | |
| Bluetooth | v5.0 | v2.1 | | |
| A2DP Profile | | | | |
| HDMI | | | | |
| WiFi | | | | |
| WiFi frequencies | | | | |
| WiFi Direct | | | | |
| WiFi Display | | | | |
| DLNA | | | | |
| Miracast | | | | |
| WiFi hotspot | | | | |
| IrDA | | | | |
| USB | v2.0 Type-C | v2.0 | v2.0 | v2.0 |
| 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 | | iTAP | T9 | T9 |
| Swype | | | | |
| e-mail client | | | | |
| Hardware QWERTY keyboard | | | | |
| RSS Reader | | | | |
Multimedia
| Radio | | | | |
| MP3 | | | | |
| Stereo speakers | | | | |
| Audio Jack | 3.5 mm | | 3.5 mm | 3.5 mm |
| HD Voice | | | | |
| Sound formats | AAC, AAC+, AMR, FLAC, MIDI, OGG, OPUS, PCM | | | |
| Polyphony | | | | |
| Video ringtone | | | | |
| Ring composer | | | | |
| Games | | | | |
| Java | | | | |
| 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 | | | | |