 In conclusion, "Ars Technica" doubted whether the Galaxy Note series was even necessary anymore due to its increasing similarities to the main Galaxy S line, and felt that the device was priced too high, citing Chinese vendors capable of undercutting the prices of major brands while still producing phones of similar specifications.Battery defects caused many Note 7 units to overheat and combust or explode.On 10 October 2016, Samsung permanently discontinued the Galaxy Note 7 due to these repeated incidents.