The 256GB 18 Pro costs about $1,468 in Thailand, compared with $1,350 in Malaysia, according to Japanese price comparison site Nukeni.
Elsewhere in Southeast Asia, the model costs about $1,492 in Singapore, $1,500 in Vietnam and $1,509 in the Philippines.
Thailand is also the ninth cheapest market globally.
The U.S. offers the lowest price at $1,199, followed by Canada at about $1,320, Hong Kong at $1,339, Malaysia at $1,350 and the United Arab Emirates at $1,388.
Nukeni compares Apple Store prices across 37 countries and territories, converting local prices using exchange rates.
Apple iPhone 18 Pro. Photo by VnExpress/Tuan Hung
Thailand remains Southeast Asia’s second cheapest market after Malaysia for the 256GB 18 Pro Max, which costs about $100 more than the Pro.
It ranks 10th cheapest globally. The U.S. is the cheapest at $1,299, followed by Canada at $1,433, Hong Kong at $1,466, Malaysia at $1,473 and the UAE at $1,497.
Apple unveiled the 18 Pro and Pro Max last week alongside its first foldable smartphone, the Duo.
Pre-orders for the Pro models opened in Thailand at 7 p.m. Sept. 12, with sales starting Sept. 18. Pre-orders for the Duo will begin at 7 p.m. Oct. 16, with sales starting Oct. 23, according to Khaosod English newspaper.