I edited my post after checking: generally, HF implants should be safe near wireless chargers, but I would avoid it anyways. If nothing else, it could be that you get maybe an LF xLED or similar in the future, and with those, its a bit dicier. On the LF xLED there have been cases where a wireless charger that wasn’t complying with the standard has burned it out, ditto with diagnostic cards.
Also keep in mind that xSeries (the glassies, pill shaped) implants are often a bit difficult to get a good coupling with, until you find a “sweet spot” and make a habit for positioning it the right way. You could check in the smartphone NFC performance thread to look for optimal positioning with your smartphone.
For an impression on how the xSIID should look, take a look at this thread, keep in mind that a lot of these photos are taken in lower-light conditions.
Hope it turns out ok! 