Device with Bluetooth BLE 4.2 required and FP2

I need to connect a fitness band (Whoop) to my Fairphone 2. Bluetooth BLE 4.2 is required. Can I have problems with BLE 4.0?
Is there any way to solve?
Anyone to use Whoop here?

Thx for help me.

From https://www.ineltek.com/wp-content/uploads/2015/09/20160330-Bluetooth4-2FAQ.pdf :

Devices implementing only the low energy feature (branded Bluetooth Smart) in Bluetooth 4.2 will be backward compatible with Bluetooth 4.0 or 4.1 devices that also implement the low energy feature.

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