Overall, the two are within a point of each other.
Four Seasons Bosphorus leads on rooms & design (+2.5) and service (+1.5); Four Seasons Bora Bora on location (+1). Level on dining and wellness.
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Fat Approved, 15.5 out of 20. Four Seasons Bosphorus
Fat Approved, 15 out of 20. Four Seasons Bora BoraIstanbul, Turkey · Four Seasons
Palace-wing rooms with 20-foot ceilings draw the most praise.
A Four Seasons hotel set directly on Istanbul’s Bosphorus waterway, with rooms and a restaurant overlooking the strait.
Read the full verdictBora Bora, French Polynesia · Four Seasons
Mount Otemanu views and the lagoon itself are the draw, with snorkeling straight off the reef and a sanctuary staffed by marine biologists.
Overwater bungalows framed by Mount Otemanu, where the Pacific meets unparalleled luxury.
Read the full verdictOut of 20. The bars start at 10, so half a point still shows.
Overall +0.5
Overall: Four Seasons Bosphorus 15.5 out of 20, Four Seasons Bora Bora 15 out of 20.Service +1.5 Why
Service: Four Seasons Bosphorus 15 out of 20, Four Seasons Bora Bora 13.5 out of 20.Four Seasons Bosphorus: Front desk and concierge staff get praised by name repeatedly, but a few guests describe being lectured or dismissed over pet and seating policies.
Four Seasons Bora Bora: Some guests get warm, attentive teams and named housekeepers who leave handwritten notes; others describe front desk staff who ignore them and app messages answered by a different person each time.
Rooms & Design +2.5 Why
Rooms & Design: Four Seasons Bosphorus 17.5 out of 20, Four Seasons Bora Bora 15 out of 20.Four Seasons Bosphorus: Palace-wing rooms with 20-foot ceilings draw the most praise, though several guests call the rooms themselves dated compared to newer Istanbul builds.
Four Seasons Bora Bora: Overwater bungalows are genuinely huge with glass floors and plunge pools, but multiple recent stays report cracked wood, spiderwebs, mold, and grimy bathrooms near the restaurants.
Location +1 Why
Location: Four Seasons Bosphorus 18 out of 20, Four Seasons Bora Bora 19 out of 20.Four Seasons Bosphorus: Right on the water in Beylerbeyi with a garden setting, though it sits well outside the old town and requires a drive for sightseeing.
Four Seasons Bora Bora: Mount Otemanu views and the lagoon itself are the draw, with snorkeling straight off the reef and a sanctuary staffed by marine biologists.
Dining Level Why
Dining: Four Seasons Bosphorus 14.5 out of 20, Four Seasons Bora Bora 14.5 out of 20.Four Seasons Bosphorus: Yali’s terrace and the breakfast buffet are standouts, but Ocakbasi’s kitchen and the single lunch restaurant get called out as weak links.
Four Seasons Bora Bora: The Mediterranean restaurant and breakfast buffet get real praise, but only two restaurants total, steep prices for simple dishes, and slow service show up often.
Wellness Level Why
Wellness: Four Seasons Bosphorus 15.5 out of 20, Four Seasons Bora Bora 15.5 out of 20.Four Seasons Bosphorus: The hammam and spa treatments get strong marks even with parts of the steam room and indoor pool closed during some stays.
Four Seasons Bora Bora: The spa gets singled out for its free saunas and relaxation pools and a secluded feel, though the changing rooms have been called out as under-kept.
Strengths of Four Seasons Bosphorus
Strengths of Four Seasons Bora Bora
Trade-offs of Four Seasons Bosphorus
Trade-offs of Four Seasons Bora Bora
Only at Four Seasons Bosphorus
Only at Four Seasons Bora Bora
A room in the old palace wing here comes with 20-foot ceilings and a view of the Bosphorus that nobody guesses from a listing photo. That's the case for booking: this is one of the only hotels in Istanbul built into actual palace architecture, and the front desk and doormen get named and praised constantly, from airport pickup through checkout. Breakfast keeps coming up as one of the best hotel spreads in the city, with real effort put into dietary requests.
The catch is that a Four Seasons rate here doesn't buy Four Seasons consistency. One family was pulled aside over dog policy after checking in and paying, then denied pool seating with no apparent resolution. A business breakfast group got told to vacate a table mid-meal by a seating manager who blamed them for sitting down unassisted. Guests who've been coming for years mention the palace rooms have no balconies and the bathrooms in some categories feel like they haven't been touched in a refurb, and the smoking policy around the pool bothers more than one traveller enough to say they wouldn't return. The breakfast and the palace suites are worth the price; the day-to-day staff experience outside the front desk is the real gamble.
Book it if the palace history and the water views are the point of the trip, not a fast pass through old town. First-timers who want to walk to the Blue Mosque and Hagia Sophia are better off at the brand's own Sultanahmet property, a converted prison a short walk from everything. For a Bosphorus base with resort space, a proper spa day, and one of the better breakfasts in Istanbul, this earns the booking.
You are paying several thousand dollars a night for Mount Otemanu out your window and a lagoon you can swim, snorkel, and kayak without ever leaving the property, and on that front this place delivers: the overwater bungalows are some of the biggest in Bora Bora, several with glass floors and private plunge pools, and the marine biologist-led lagoon sanctuary gets called the best activity on the island by people who've done every excursion here.
What you're actually rolling the dice on is consistency. The building is showing its age in specific, repeated ways: cracked wood and missing slabs in rooms, spiderwebs that come back daily, grimy bathrooms near the restaurants, and an air-conditioning whine in some bungalows loud enough to hear at night. Service swings just as widely, from a housekeeper who left handwritten thank-you notes and wrapped up phone cords, to a front desk staffer who waved off a soaked, shivering guest to check in someone else. Food is good but thin: two restaurants plus bar snacks, and the app-based request system means you often explain your issue fresh to whoever picks up the message next. None of this is disqualifying, but at this price it should not be happening at all, and a family that had a splinter emergency with zero management follow-up is the sharpest version of that pattern.
Book it for the room and the water, not for a flawless five-star routine: nobody is topping this lagoon on this island, and the beach villas and bungalows are worth the splurge for the view alone. Skip it if you want honeymoon hush, since golf carts, corporate events, and a lively family crowd can crowd out the quiet; St. Regis next door reportedly edges it on food and polish, if that's what you're optimizing for. For the setting and the room itself, book the Otemanu-view bungalow and go in expecting nature to be the star, not the service.
We’re Sofie and Nicolas, and we’ve stayed in hotels like these ourselves. Tell us what the trip is and we’ll tell you which one we’d book, and why. We’re not really a booking service, but a few times a year we plan one properly for someone; if that’s what you’re after, say so.
It's just the two of us, so we take on a handful of trips at a time. If we're full, we'll say so. We reply within a working day. The hotel pays us, not you: your rate is the same as booking direct, and the perks come on top.
Four Seasons Bosphorus: Palace-wing rooms with 20-foot ceilings draw the most praise. Four Seasons Bora Bora: Mount Otemanu views and the lagoon itself are the draw, with snorkeling straight off the reef and a sanctuary staffed by marine biologists.
Four Seasons Bosphorus is ahead on the rooms. Four Seasons Bora Bora is ahead on where it puts you. Four Seasons Bosphorus adds Urban, Heritage, Architecture and Culinary; Four Seasons Bora Bora adds Beach, Island, Tropical and Adventure. Both are tagged Romantic and Wellness.
Four Seasons Bosphorus leads on this. Four Seasons Bosphorus: Palace-wing rooms with 20-foot ceilings draw the most praise, though several guests call the rooms themselves dated compared to newer Istanbul builds. Four Seasons Bora Bora: Overwater bungalows are genuinely huge with glass floors and plunge pools, but multiple recent stays report cracked wood, spiderwebs, mold, and grimy bathrooms near the restaurants.
Four Seasons Bosphorus leads on this. Four Seasons Bosphorus: Front desk and concierge staff get praised by name repeatedly, but a few guests describe being lectured or dismissed over pet and seating policies. Four Seasons Bora Bora: Some guests get warm, attentive teams and named housekeepers who leave handwritten notes; others describe front desk staff who ignore them and app messages answered by a different person each time.
Four Seasons Bosphorus is in Istanbul, Turkey; Four Seasons Bora Bora is in Bora Bora, French Polynesia.
Four Seasons Bora Bora, with Two Michelin Keys in the Michelin Guide’s 2026 hotel selection; Four Seasons Bosphorus holds One Key. The Keys come from the guide’s own anonymous inspections and are separate from the Fat Score.
Fat Voyage scores every hotel out of 20 across five dimensions — service, rooms & design, location, dining and wellness — read from the trip reports in the most active luxury travel communities, critics’ reviews and verified guest reviews, with the long, detailed and recent ones counting most. Nothing is paid for, and no hotel can buy a place.
