
citizenM Boston Back Bay
Best for travelers who want modern, social spaces, round-the-clock dining and smart-room tech at a lower price point.
Prices in other currencies are estimates. You’re charged in USD.
citizenM Boston Back Bay is a design-forward, tech-driven 4-star hotel with 24/7 dining and a 15th-floor rooftop bar — good for social, budget-conscious travelers and families. Mandarin Oriental, Boston is an international 5-star luxury property in Back Bay with a full-service spa, fine dining and large suites — aimed at guests wanting traditional luxury and service.
Updated · about 0.6 km apart (roughly 0.4 miles)

Best for travelers who want modern, social spaces, round-the-clock dining and smart-room tech at a lower price point.

Best for travelers seeking full-service five-star amenities: a large suite inventory, a dedicated spa and formal dining.
When citizenM Boston Back Bay wins: choose citizenM if you want a contemporary, compact room with iPad room controls, free high-speed Wi‑Fi, a lively rooftop bar and 24/7 canteenM for flexible dining — all within a Walker's Paradise part of Back Bay.
When Mandarin Oriental, Boston wins: pick the Mandarin for formal five-star service, a full-service spa, luxury bedding, larger suite options and event/meeting facilities when you want traditional comfort and on-site amenities.
Bottom line: citizenM is the practical, social, design-forward pick for most city stays; Mandarin Oriental is the choice for travelers prioritizing full-service luxury, spa time and larger rooms or suites.
| Category | citizenM Boston Back Bay | Mandarin Oriental, Boston |
|---|---|---|
| Overall vibe | Modern, compact, design-led and social | Classic international five-star luxury and formal service |
| Location (neighborhood) | Back Bay / Fenway–Kenmore, on Newbury Street | Back Bay, on Boylston Street near Newbury & Copley |
| Size (rooms) | 399 rooms across 14 floors | 148 guestrooms (supplier listing) |
| Ages / audience | All ages welcome; family-friendly (children of all ages; some child policies apply) | Family-friendly (children stay free up to specified ages per supplier listing) |
| Pools / beach | No on-site swimming pool | Not published |
| Restaurants & bars | canteenM (24/7 international) + Bubble Bath rooftop (21+ rooftop bar) | Ramsay's Kitchen (on-site restaurant) + bar/lounge and 24-hour room service |
| Spa & wellness | 24-hour fitness centre with Peloton bikes; no spa | Full-service spa, health club and sauna |
| Known for | Tech-controlled rooms, social public spaces and round-the-clock dining | Five-star service, large suites and a signature spa |
| Meeting & event space | No dedicated wedding/event ballroom published; rooftop and restaurant spaces only | Approximately 10,000 sq ft of conference/meeting space and a ballroom |
| Accessibility & practicalities | Wheelchair accessible path and some accessible rooms; self-service check-in kiosks | Wheelchair accessible path of travel, accessible rooms and 24-hour front desk |
citizenM sits on Newbury Street in the Fenway–Kenmore/Back Bay area — excellent walkability to shopping and music schools.
Choose citizenM if you want very walkable access to Back Bay shops and transit.
Mandarin Oriental is on Boylston Street in Back Bay, steps from Newbury Street, Copley Square and Hynes.
Choose the Mandarin for central Back Bay location with a more formal luxury hotel presence.
citizenM's 399 rooms are compact, tech-forward and consistent across three room types.
citizenM is for travelers who accept smaller footprints in exchange for modern tech and efficient design.
Mandarin Oriental offers a wide array of deluxe rooms, premier rooms and suites including multi-bedroom residential suites.
Mandarin Oriental is for guests who want spacious rooms or suites and traditional luxury finishes.
citizenM centers around canteenM — an always-open casual international restaurant — plus a 15th-floor rooftop bar.
Pick citizenM for flexible, casual dining any hour and a social rooftop scene.
Mandarin Oriental provides formal on-site dining plus 24-hour room service.
Pick the Mandarin if you prefer formal dining options and full room service at a luxury hotel.
citizenM lacks a pool but offers a notable rooftop bar and an always-open restaurant.
citizenM’s rooftop is the standout amenity; don’t expect a pool or spa.
Mandarin Oriental lists a full-service spa and health club among its highlighted amenities.
Mandarin Oriental is the choice when a dedicated spa and wellness facilities matter.
citizenM supports active and social travelers with a 24-hour fitness center and late-night rooftop bar.
citizenM mixes practical fitness options with a strong nightlife element on the rooftop.
Mandarin Oriental focuses on full-service relaxation plus quieter, upscale dining and bar options.
Mandarin suits travelers who prefer spa time and formal evening dining over a clubby rooftop scene.

citizenM gives modern design, tech-forward rooms and 24/7 dining without five-star prices.

Mandarin Oriental provides a full-service spa, premium suites and traditional five-star amenities.

citizenM's canteenM (24/7) and the Bubble Bath rooftop bar keep options open late.

Mandarin Oriental lists about 10,000 sq ft of conference and ballroom space for events.
Both are in Back Bay, but citizenM is on Newbury Street itself (a 1-minute walk); Mandarin is steps away on Boylston Street.
No. citizenM does not have a pool or spa; Mandarin Oriental lists a full-service spa and wellness facilities.
Yes. citizenM is family-friendly and welcomes children of all ages (with some charge/crib limitations). Mandarin Oriental's supplier listing also notes children can stay free under certain conditions.
Mandarin Oriental has a wide range of larger suites (Presidential, Royal and Residential options); citizenM offers compact, consistent rooms across three types.
Explore how citizenM Boston Back Bay stacks up against other hotels nearby:
vs. sites like Expedia, Hotels.com and other OTAs ·