01 — The shelf, priced side by side
· Five-star (Haitang Bay shelf): $250–600, branded and new
· Strong four-star: $100–200
· Dining: mid-high, mall-anchored
· The duty-free layer on top — unique in the contest
· Phuket five-star: $200–800, the widest range in Asia
· Danang five-star: $80–250 — the value shock
· Phuket dining: the region’s deepest scene
· Danang dining: local-priced, seafood-led
The price ladder is stark: Danang undercuts Sanya by roughly half at every tier, and Phuket spans the whole range both ways. Sanya’s premium buys newer hardware and the duty-free layer; Phuket’s buys the ecosystem; Danang’s discount buys — increasingly — the same sun.
02 — Beach and water, honestly scored
Phuket offers the most variety — a dozen distinct beach personalities plus the day-trip archipelagos. Danang counters with one long, excellent city beach and the Hoi An add-on. Sanya holds Yalong Bay — genuinely fine white sand and calm water — but a narrower coastal range, and underwater life that neither Thai nor Vietnamese reefs concede. For the pure beach connoisseur the triangle ranks Phuket first, Sanya second, Danang third; for the value-adjusted one it inverts almost exactly.
03 — Access and the friction ledger
Visas are no longer the separator — all three are easy, and Hainan’s 59-nation visa-free regime is the widest in China. The real friction line is inside: Sanya runs on China’s app-and-payment ecosystem (a learning curve for the international guest, invisible to the Chinese and increasingly pre-solved for the Russian one), while Phuket and Danang run on cash, cards and global platforms. For the domestic Chinese guest the ledger inverts completely — Sanya is the zero-friction option, and the other two are abroad.
04 — The product argument
· New, branded, polished resort hardware
· The duty-free machine as a second attraction
· Water parks, aquaria, the family stack
· Service at Chinese-luxury standard
· Phuket: the deepest ecosystem — nightlife, marinas, old town, islands
· Danang: value, Hoi An’s charm, the easiest first step into Vietnam
· Both: the international-resort atmosphere Sanya lacks
· Both: food scenes that outplay Hainan’s
This is the heart of the contest. Sanya wins on hardware and loses on atmosphere: its resorts are newer and grander, but the destination around them is a mall-anchored resort strip, while Phuket offers a region and Danang offers a country. The traveller choosing a resort chooses Sanya; the traveller choosing a trip chooses Thailand or Vietnam.
05 — The investor’s page
For capital, the triangle is three different products. Sanya: a policy-backed domestic machine — enormous floor, capped international upside, and pricing that follows Chinese confidence. Phuket: the region’s institutional market — mature, liquid, diversified, with branded-residence economics leading Asia. Danang: the growth trade — the cheapest entry, the fastest demand growth, and the thinnest institutional depth. The 2026 momentum: Sanya defends the domestic guest, Phuket consolidates the international one, and Danang harvests the price gap — all three claims are currently true.
06 — Final outlook
The triangle is stable because each vertex owns a different guest. For the traveller: budget to Danang, variety to Phuket, and the polished zero-friction beach to Sanya — with the winter months (Nov–Feb) the shared peak at all three. For the investor: Sanya is the policy trade, Phuket the institutional one, Danang the growth one — and the winter-sun wallet is big enough that all three theses pay. The battle for Asia’s winter sun ends in a draw — which is what a mature market looks like.
Sources: STR/CoStar regional benchmarks; TIO destination files (Sanya, Phuket, Phu Quoc); Hainan visa and duty-free policy announcements; aviation schedule data. Verified as of August 2026.