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Crosscall CORE-Z5 push-to-talk phone

A rugged 5G Android phone from Crosscall with a 6.08-inch screen, four programmable buttons that can run push to talk, a 3.5 mm jack and a user-replaceable battery. TASSTA and Mobile Tornado list it, and Crosscall gives it a five-year warranty.

Will it work in your country?

Crosscall lists 10 LTE FDD and 6 LTE TDD bands for the CORE-Z5, including the 800 MHz band 20 and 700 MHz band 28 that EU networks use outside cities, plus 5G n28 and n78.

Crosscall CORE-Z5

    Try the push-to-talk apps on the CORE-Z5

    These services list the CORE-Z5 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 →

      How big is it?

      The CORE-Z5 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.

        Network
        LTE FDD bandsB1 B2 B3 B5 B7 B8 B20 B28 B32 B68
        LTE TDD bandsB38 B39 B40 B41 B42 B43
        5G bandsFDD n1 n3 n5 n7 n8 n20 n28; TDD n38 n40 n41 n77 n78
        3G and 2GHSPA+ 850 / 900 / 1700 / 1900 / 2100 MHz; GSM 850 / 900 / 1800 / 1900 MHz
        SIMTriple tray: two nano-SIMs and a microSD card
        VoiceVoLTE and Wi-Fi calling, depending on the operator
        System and apps
        Operating systemAndroid 12 at launch, Android 14 now; Crosscall guarantees an upgrade to Android 16
        Security updatesFrom October 2022; not guaranteed after December 2032
        ChipsetQualcomm QCM6490, eight cores: one at 2.7 GHz, three at 2.4 GHz, four at 1.9 GHz
        Memory6 GB RAM and 128 GB storage; microSD up to 1 TB
        Device managementAndroid Enterprise Recommended, Zero Touch enrollment
        PTT platforms that list itTASSTA (Crosscall Z5, Android 12); Mobile Tornado (Core Z5, rugged devices)
        Screen and battery
        Screen6.08-inch IPS, 1520 × 720, 19:9, Gorilla Glass 5, 500 cd/m²
        TouchFive-point touch that works when wet and with gloves
        Battery4,950 mAh lithium polymer (rated capacity 4,830 mAh), user-replaceable
        Battery life (published figures)Up to 44 hours of 4G talk time (34 hours on 3G) and 306 hours on 4G standby; 800 charge cycles
        ChargingUSB-C 3.2 Gen 1 with reverse charging; X-LINK magnetic contacts on the back
        Build
        Water and dust ratingIP68; fresh water to 2 m for 30 minutes, dust-tight IP6X
        Military test standardMIL-STD-810H
        Drop2 m onto concrete on all six faces; EU drop reliability class A, 270 falls without defect
        LiquidsSalt and chlorinated water; hand sanitizer gel, alcohol, soap, ethanol, diesel and sweat
        Operating temperature−25 to +60 °C
        Weight281 g
        Size175 × 81 × 14 mm (height × width × depth)
        Speaker100 dB at 10 cm
        Keys and connectors
        Programmable buttonsFour, three on the left side and one on top; Crosscall names push to talk among their uses
        Other keysVolume keys and an on/off key with a fingerprint reader, on the right side
        Audio connectorWaterproof 3.5 mm jack
        X-LINKMagnetic connector on the back for mounts, charging and data
        Indicator lightsTwo multicolor LEDs
        Connectivity
        Wi-FiWi-Fi 6 and 6E (802.11 a/b/g/n/ac/ax), 2.4, 5 and 6 GHz
        BluetoothBluetooth 5.2
        Satellite positioningDual-frequency GPS (L1/L5) and Galileo (E1/E5), plus A-GPS, GLONASS and BeiDou
        NFCYes, with payments
        Cameras, repair and warranty
        CamerasRear 48 MP with phase-detection autofocus and LED flash; front 8 MP; video 4K at 30 fps
        WarrantyFive years, battery included
        RepairabilityEU repairability class A, index 4.14; spare parts for up to ten years
        On the EU market since15 February 2023
        Price at Crosscall's store€449.90, down from €599.90 (October 2026)

        Where sources disagree

        • RAMSpec table: 6 GB · Feature text: 4 GB of RAM

        Questions

        Does the Crosscall CORE-Z5 have a push-to-talk button?

        It has four programmable buttons, three on the left side and one on top. Crosscall says one press can turn the phone into a walkie-talkie with push to talk; none of the buttons is labeled PTT.

        Which push-to-talk apps support the CORE-Z5?

        TASSTA lists the Crosscall Z5 as compatible on Android 12, and Mobile Tornado lists the Core Z5 among its rugged devices.

        Is the Crosscall CORE-Z5 5G?

        Yes. Crosscall lists 5G bands n1, n3, n5, n7, n8, n20 and n28 (FDD) and n38, n40, n41, n77 and n78 (TDD).

        Is the CORE-Z5 battery replaceable?

        Yes. The EU product information sheet marks the 4,950 mAh battery as user-replaceable, and Crosscall's five-year warranty includes the battery.

        How long will the CORE-Z5 get updates?

        Crosscall guarantees an upgrade to Android 16 and lists security updates until December 2032. The phone runs Android 14 now.

        Does the CORE-Z5 have a headphone jack?

        Yes. Crosscall lists a waterproof 3.5 mm jack, on the top edge.

        Sources