They opt against buying the Series 3 with water resistance and cellular capabilities in favor of the more affordable Series 1.
A second market research firm has found that the Chinese tech manufacturer has overtaken the iPhone maker in mobile sales.
The fight has been among Samsung, Apple and Xiaomi for a period, but OnePlus has launched a rocket in India and has ridden it up into the premium space.
Android still dominates the market but iOS continues to grow as 8 out of the 10 best-selling smartphones of Q2 2018 were iPhones.
iPhones completely dominated the US market between March and January 2018, with the 64GB iPhone 8 declared the nation's most popular handset, followed by the 64 gig iPhone X.
Both Samsung and Apple contributed to Europe's shrinking Q1 2018 smartphone shipment numbers, but the iPhone X was easily the continent's most popular model, according to Canalys.
The latest Android distribution chart looks just as bad as the one from last month, with Nougat in the lead, Marshmallow in second place, and Oreo at only 5.7 percent.
According to Strategy Analytics, Xiaomi more than doubled its share of the global smartphone market between Q1 2017 and Q1 2018, while Huawei achieved a new quarterly record.
The iPhone X was meant to be a big hit, but ended up being a big dud for the mass audience. At least those who have one are pretty satisfied with it.
Across the country, people are waiting longer before upgrading and, when they do, are increasingly choosing something other than an iPhone.
Ironically, it's not the iPhone X that's helping Apple out here, but sales of older, cheaper iPhones at the carriers instead.
Smartphone sales revenue grew to their highest levels ever according to Strategy Analytics. Apple, Samsung and Huawei all grew share.
Huawei managed to handily beat OPPO for China's Q4 2017 and full-year smartphone crowns, with Apple in fifth place overall, but easily the champion of profits.
Apple's iPhone X ruled the October - December 2018 charts in Urban China, according to the latest Kantar Worldpanel ComTech data, also selling very well in Europe, Japan, Australia and the US.
Samsung may have been India's top overall 2017 smartphone vendor, but Xiaomi won the final quarter, also leading the full-year model popularity chart.
Global smartphone sales only achieved minor growth during Q4 2017, according to GfK market research, but average smartphone prices surged at a remarkable pace.
Xiaomi may have surpassed Samsung in Q4 2017 smartphone shipments in India, but the world's number one mobile device vendor was also the region's champ in actual sales to customers.
India's extremely important smartphone market was dominated by Xiaomi rather than Samsung during the final quarter of last year, while Reliance Jio won the local feature phone trophy.
The iPhone X wasn't Apple's best-sold mobile device between October and December 2017 in the US, according to the latest CIRP report.
Apple is number one in CIRP's Q4 2017 US smartphone activation rankings, surging from a 34 percent share during the final three months of 2016 to an impressive 39 percent.
Apple was one of China's top performers in overall 2017 smartphone sales volume, with the iPhone 7 Plus ranked second and iPhone 7 fifth on the best-selling model list.
Ahead of a somewhat surprising December demand slowdown, Apple's iPhone X reportedly crushed the competition in the month of November, at least across three major global markets.
Samsung should continue to dominate the global smartphone market next year, but Apple and Huawei are expected to start narrowing the gap.