Istanbul · head to head

Mandarin Oriental Bosphorus vs The St. Regis Istanbul

Priced on the same night, 2026-10-10: The St. Regis Istanbul is $690 a night less. They are 3.7 km apart.

Mandarin Oriental Bosphorus

Mandarin Oriental Bosphorus

Kurucesme Mah. Muallim Naci Caddesi No:62 Besiktas, Istanbul · ★★★★★
9.6/10 from 456 guests
$1,050/ night, 2026-10-10
+ $107 taxes & fees
The St. Regis Istanbul

The St. Regis Istanbul

Mim Kemal Oke Caddesi No:35 Nisantasi, Istanbul · ★★★★★
9.2/10 from 590 guests
$360/ night, 2026-10-10
+ $37 taxes & fees

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The honest take

The St. Regis is $341 a night with a 9.2 rating over 590 reviews, butler service, a Wolfgang Puck rooftop and Iridium Spa - a serious amount of hotel for the money. Mandarin Oriental Bosphorus is $1,008, rated 9.6 across 456 reviews, and sits directly on the water in Kurucesme rather than inland in Nisantasi, with a hot tub the St. Regis lacks. Unless the waterfront setting and that extra tenth of a rating point matter enough to you to pay roughly three times as much, book the St. Regis. For a special-occasion Bosphorus stay where the view is the point, Mandarin Oriental earns its price.

The look and the feel

Mandarin Oriental Bosphorus

This is the Bosphorus outpost of the Mandarin Oriental group, built low and horizontal along the water in Kurucesme so that nearly everything faces the strait - the restaurants, the spa, the rooms stacked toward the view. Expect the brand's usual grammar of pale stone, dark timber and orchids in the lobby, with terraces angled for sunset over the water and the ferries and tankers passing. The dining draws on Italian, Mediterranean and Asian kitchens, and there's a kids' club and playground, which pulls in a family crowd alongside the couples chasing the view. It reads less like a historic Istanbul address and more like a resort that happens to be in the city, built around water and light rather than street life.

Best for travellers who want the Bosphorus itself as the backdrop, and families who'll use the kids' club and playground.

The St. Regis Istanbul

Set in Nisantasi, Istanbul's upmarket shopping district, the St. Regis leans into the brand's old formula of butler service and quiet formality but gives it a local twist - every room carries original work by Turkish artists rather than generic hotel art. The rooftop restaurant is Spago by Wolfgang Puck, so there's a genuine culinary draw rather than a default hotel dining room, and Petit "O" Bar downstairs suggests a proper cocktail hour rather than a lobby bar afterthought. Iridium Spa has pools built into it, a rarity even at this level. The neighbourhood itself is dense and urban - boutiques, cafes, apartment blocks - so the feel outside the door is city rather than shoreline.

Best for travellers who want a design-led, service-heavy stay in the city's shopping district without paying resort prices.

The St. Regis, for a third of the price, has no listed hot tub, which the Mandarin Oriental offers alongside its waterfront position.

The St. Regis is the more characterful place to actually be in day to day, thanks to the Turkish art programme and the Wolfgang Puck rooftop, but the Mandarin Oriental's uninterrupted Bosphorus frontage is the harder thing to replicate anywhere else in the city.

The numbers
Mandarin Oriental BosphorusThe St. Regis Istanbul
Price, same night$1,050$360
Guest rating9.6/109.2/10
Reviews456590
Stars★★★★★★★★★★
Facilities on our list87
Distance apart3.7 km
What one has that the other doesn't

Only Mandarin Oriental Bosphorus has

  • Hot tub

Only The St. Regis Istanbul has

Nothing on our list that Mandarin Oriental Bosphorus lacks.

What guests actually say

Mandarin Oriental Bosphorus

  • attentive service at Olea restaurant
  • excellent location on the Bosphorus
  • outstanding housekeeping staff
  • slow, inattentive front-of-house service
  • room maintenance issues unresolved

The St. Regis Istanbul

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Rooms & rates, 2026-10-10

Mandarin Oriental Bosphorus

  • Superior King RoomRoom Only$1,050
  • Superior Twin RoomRoom Only$1,050
  • Superior Twin Room(2 Twin Beds)Room Only$1,064
All rooms & rates

The St. Regis Istanbul

  • Superior RoomRoom Only$360
  • Superior RoomBreakfast Included$411
  • Deluxe RoomRoom Only$471
All rooms & rates
In guests' own words

Mandarin Oriental Bosphorus

10/10

“Paradise on the Bosphorus”

Awesome location & service Ibrahim @ Olea restaurant is most attentive and courteous. His service is first class and a credit to his beautiful hotel

10/10

“Mandarin Oriental Bosphorus, Istanbul: One of the Finest Luxury Hotel Experiences”

Mandarin Oriental Bosphorus, Istanbul: One of the Finest Luxury Hotel Experiences After several stays at Istanbul’s leading luxury hotels over the years, this visit to Mandarin Oriental Bosphorus reminded us very clearly why this property belongs at the very top of the city’s hotel scene. We travel extensively and spend a significant part of the year in hotels around the world. In Istanbul, we know properties such

4/10

“Not good!!”

This has been the worst service I’ve experienced at a luxury hotel. Service is extremely slow, especially from the kitchen, and many employees seem more focused on their phones or computers than guests. You can walk through the lobby without anyone acknowledging or greeting you. The housekeeping staff, however, has been outstanding. Overall, the service simply does not meet luxury hotel standards.

All reviews

The St. Regis Istanbul

No written reviews on file.

All reviews
About each

Mandarin Oriental Bosphorus

Mandarin Oriental BosphorusMandarin Oriental BosphorusMandarin Oriental BosphorusMandarin Oriental Bosphorus

Luxury Accommodation with Diverse Amenities Exceptional Dining Experience Indulge in a variety of cuisines at the on-site restaurant, offering Italian, Mediterranean, and Asian dishes, with special dietary options available upon request. Family-Friendly Facilities Enjoy a worry-free stay with a kids' club, children's playground, and multilingual staff at…

Check-in — · Check-out 12:00 PM

The St. Regis Istanbul

The St. Regis IstanbulThe St. Regis IstanbulThe St. Regis IstanbulThe St. Regis Istanbul

Luxurious Accommodations and Personalized Service Experience the epitome of luxury at The St. Regis Istanbul, where every room showcases original art pieces by Turkish artists. Enjoy the 24-hour St. Regis Butler Service and complimentary amenities like water, coffee, and tea. Indulge in the rooftop dining at Spago by Wolfgang Puck and unwind at the…

Check-in — · Check-out 12:00 PM

Facilities, in full

Mandarin Oriental Bosphorus

  • Fitness facilities
  • WiFi available
  • Free WiFi
  • Parking
  • Non-smoking rooms
  • Air conditioning
  • Fitness center
  • Swimming pool
  • 24-hour front desk
  • Restaurant
  • Room service
  • Heating
  • Terrace
  • Family rooms
  • Garden
  • Pets allowed

The St. Regis Istanbul

  • Fitness facilities
  • WiFi available
  • Free WiFi
  • Parking
  • Free Parking
  • Non-smoking rooms
  • Air conditioning
  • Fitness center
  • Swimming pool
  • 24-hour front desk
  • Restaurant
  • Room service
  • Business center
  • Heating
  • Terrace
  • Family rooms
Where they are
More comparisons in Istanbul

Rates are live for 2026-10-10, one night, two guests, fetched together so the two are comparable. Facilities and reviews are from each hotel's own listing. The honest take is written by our AI from the listing, the reviews and what is widely known about each hotel. HotelDupe earns a commission if you book, which never changes the verdict. All comparisons