is a reviewer with 10 years of experience writing about consumer tech. She has a special interest in mobile photography and telecom. Previously, she worked at DPReview. The US smartphone market is weird. Most of us buy our phones through some combination of installment plans, trade-in offers, and carrier deals, so answering the question “How much does this phone cost?” can sometimes require a little galaxy-brain math. President Trump’s 34 percent tariff increase on Chinese goods is set to take effect on April 9th, making things even more complicated. Will Apple, for instance, pass the extra cost of an iPhone...