The Onyx Boox Palma has been one of their most successful e-readers ever. Onyx Boox is gearing up to release a new Palma device, but is able to make phone calls with a SIM Card. A Palma with a SIM or eSim would be super benefical, since you can use all functionality while on the go. The Bigme Hibreak and Hibreak Color both have a SIM card to make calls and have Android and Google Play. The BOOX Palma 2 retails for around $300 and it remains to be seen if the color version with 4G and LTE internet will drive the costs up.