Apple is testing four different styles of frames for its rumoured smart glasses, Bloomberg’s Mark Gurman claims in the latest edition of his ‘Power On’ newsletter. Citing Apple employees working as part of the project, the Cupertino-based tech giant is reportedly exploring multiple frame styles, including a large rectangular frame, a slimmer rectangular frame, l…Apple is testing four different styles of frames for its rumoured smart glasses, Bloomberg’s Mark Gurman claims in the latest edition of his ‘Power On’ newsletter. Citing Apple employees working as part of the project, the Cupertino-based tech giant is reportedly exploring multiple frame styles, including a large rectangular frame, a slimmer rectangular frame, l…