Will it work in your country?
Crosscall lists 9 LTE FDD and 2 LTE TDD bands for the CORE-X5, including the 800 MHz band 20 and 700 MHz band 28 that EU networks use outside cities, and no 5G.
Try the push-to-talk apps on the CORE-X5
These services list the CORE-X5 as supported. Pick one and try what it can do.
Tap the talk button on the screen for the next call, hold it to talk; the tabs switch the app's screens.
About TASSTA →Website ↗How big is it?
The CORE-X5 next to other radios, to scale. Pick up to three to compare.
Full specifications
Values come from the sources listed at the end of the page. Where they disagree, both values are shown.
| LTE FDD bands | B1 B2 B3 B5 B7 B8 B20 B28 B32 (B32 downlink only, with carrier aggregation) |
|---|---|
| LTE TDD bands | B38 B40 |
| 5G | No |
| 3G and 2G | HSPA+ 850 / 900 / 1700 / 1900 / 2100 MHz; GSM 850 / 900 / 1800 / 1900 MHz |
| SIM | Triple tray: two nano-SIMs and a microSD card |
| Voice | VoLTE and Wi-Fi calling, depending on the operator |
| Private networks | Crosscall designed it for private professional mobile radio (PMR) LTE networks, naming bands 28, 38 and 40 |
| Operating system | Android 11 at launch, Android 12 later; Crosscall planned Android 13 and Android 15 |
|---|---|
| Chipset | Qualcomm Snapdragon 665 (SM6125), eight cores: four A73 at 2.0 GHz and four A53 at 1.8 GHz |
| Memory | 4 GB or 6 GB RAM and 128 GB storage; microSD up to 512 GB |
| Device management | Android Enterprise Recommended, Zero Touch enrollment |
| Crosscall app | X-TALK, Crosscall's walkie-talkie app for group talk without phone numbers or calls |
| PTT platforms that list it | TASSTA (Android 11); Mobile Tornado (rugged devices); Microsoft Teams Walkie Talkie |
| Screen | 5.45-inch HD+, 1440 × 720, 18:9, 500 cd/m², IK05 |
|---|---|
| Touch | Five-point touch that works when wet and with gloves |
| Battery | 4,940 mAh lithium polymer |
| Battery life (published figures) | Up to 32 hours of 2G/3G talk time and 13 days on 4G standby; at least 600 charge cycles |
| Charging | USB-C 3.2 Gen 1 with USB Power Delivery reverse charging; X-LINK magnetic contacts on the back |
| Water and dust rating | IP68; salt and chlorinated water to 2 m for 30 minutes, dust-tight IP6X |
|---|---|
| Military test standard | MIL-STD-810H, 15 tests |
| Drop | 2 m onto concrete on all six faces |
| Operating temperature | −25 to +60 °C |
| Weight | 256 g |
| Size | 163 × 78 × 14.5 mm (height × width × depth) |
| Speaker | 100 dB main speaker |
| Programmable buttons | Four, for a push-to-talk app: talking, distress calls and changing groups; three on the left side and one on top |
|---|---|
| Button settings | Long press or three short presses; each can call a number, open an app such as X-TALK or switch a mode (Settings > Buttons) |
| Other keys | Volume keys and an on/off key with a fingerprint reader, on the right side |
| Audio connector | Waterproof 3.5 mm jack |
| X-LINK | Magnetic connector on the back for mounts, charging and data |
| Wi-Fi | 802.11 a/b/g/n/ac, 2.4 and 5 GHz |
|---|---|
| Bluetooth | Bluetooth 5.0 |
| Satellite positioning | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| NFC | Yes, with payments |
| Cameras | Rear 48 MP with autofocus and LED flash; front 8 MP; video 4K at 30 fps |
|---|---|
| Warranty | Five years, battery included |
| Repair | Spare parts for up to ten years depending on the model; Crosscall publishes a disassembly guide |
Questions
Does the Crosscall CORE-X5 have a push-to-talk button?
It has four programmable buttons that Crosscall designed for push-to-talk apps: one can talk, another send a distress call, another switch groups. None is labeled PTT.
Which push-to-talk apps support the CORE-X5?
TASSTA lists it as compatible on Android 11, Mobile Tornado lists it among its rugged devices, and Microsoft lists it for Teams Walkie Talkie. Crosscall's user guide also names its own app, X-TALK.
How do you set up Teams Walkie Talkie on the CORE-X5?
Microsoft's steps: with Teams installed, open Settings > Buttons, choose dedicated button 1 or 2, select Long press, then PTT App, and pick Teams under Custom.
Does the Crosscall CORE-X5 have 5G?
No. It is a 4G phone with LTE bands 1, 2, 3, 5, 7, 8, 20, 28 and 32 (FDD) and 38 and 40 (TDD).
Is the Crosscall CORE-X5 still sold?
No. Crosscall has withdrawn it: its product page is gone, and in October 2026 its web store and security-update table no longer list it. Crosscall's current CORE phones include the CORE-M6 and CORE-Z5.
Is the CORE-X5 waterproof?
Crosscall rates it IP68: it survives salt and chlorinated water to 2 m for 30 minutes and is dust-tight. It also meets MIL-STD-810H and survives 2 m drops onto concrete.
