I purchased a "NanoVNA-H4" from Amazon in the UK. The brand is Hima, supplied by ANGLO CT. I purchased from Amazon to try to avoid delivery delays and unexpected import costs. I opened the back of the device to find there is no QR code or version no. But more significantly the mcu/processor is an STM32F 302. I understand the "302" part is a lower spec than that used by the official Hugen product.
I don't "need" the device for immediate use, so should I return it?
Thanks.