
citizenM Boston Back Bay
Best for social travelers and shoppers who value location, round-the-clock dining, and a lively rooftop bar.
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citizenM Boston Back Bay is a 4-star, tech-forward, compact hotel on Newbury Street with a 15th-floor rooftop bar and 24/7 canteenM — good for social, design-minded travelers who want easy access to shopping and events. The Colonnade Hotel Back Bay is an established 4-star Back Bay property with a rooftop seasonal pool and full-service hotel facilities — read this if you prefer a more traditional hotel with larger rooms and poolside amenities.
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Best for social travelers and shoppers who value location, round-the-clock dining, and a lively rooftop bar.

Best for guests who want a traditional full-service Back Bay hotel with a seasonal rooftop pool and meeting/event options.
When citizenM Boston Back Bay wins: choose citizenM if you want contemporary, compact rooms with smart controls, 24/7 dining, a lively rooftop bar (Bubble Bath Back Bay), and a highly walkable Newbury Street location.
When The Colonnade Hotel Back Bay wins: pick The Colonnade for a more conventional hotel experience — larger room inventory, an outdoor seasonal rooftop pool (open June–August), on-site LUCIE drink + dine, and substantial meeting/conference space.
Bottom line: both are 4-star Back Bay hotels steps from shopping and transit; citizenM is for travelers who prioritize a modern, social, tech-first stay in a compact room, while The Colonnade suits those wanting pool access and broader full-service amenities.
| Category | citizenM Boston Back Bay | The Colonnade Hotel Back Bay |
|---|---|---|
| Overall vibe | Compact, design-led, social hotel with tech controls and a rooftop bar. | Established, full-service Back Bay hotel with conference space and traditional guest services. |
| Location | 408 Newbury Street — steps from Newbury Street boutiques, near Hynes Convention Center and Berklee. | 120 Huntington Avenue — in the heart of Back Bay near Prudential Center and Copley Square. |
| Size | 399 rooms across 14 floors (compact room layouts). | 285 guestrooms (mix of Superior, Preferred, Premier Luxe room types). |
| Ages / audience | All ages welcome; minimum check-in age 18; family-friendly but no cribs/extra beds. | All ages welcome (not adults-only); family-friendly full-service hotel. |
| Pools / outdoor water | No swimming pool on site; rooftop bar and outdoor patio instead. | Outdoor seasonal rooftop pool (open June–August) with poolside bar and sunloungers. |
| Restaurants & bars | canteenM (24/7 international menu) and Bubble Bath Back Bay (15th-floor champagne/wine bar, 21+). | LUCIE drink + dine (on-site restaurant) plus a bar/lounge and a poolside bar. |
| Spa / wellness | 24-hour fitness centre with Peloton bikes; no on-site spa published. | 24-hour fitness facilities; a health/beauty spa is listed nearby (not necessarily on site). |
| Meetings & events | No published dedicated meeting or conference facilities; public spaces and rooftop venue for casual meetups. | Extensive meeting and conference space (13,003 sq ft / 1,208 m²) and banquet facilities. |
| Known for | Rooftop Bubble Bath Back Bay, 24/7 canteenM and modern in-room tech (iPad controls). | Back Bay address with a seasonal rooftop pool and on-site restaurant LUCIE drink + dine. |
citizenM sits at 408 Newbury Street, a block-from-shopping spot with easy access to Hynes and local transit.
Pick citizenM for immediate access to Newbury Street shopping and a highly walkable neighbourhood.
The Colonnade is on 120 Huntington Avenue, positioned close to Prudential Center, Copley Place and Copley Square.
Choose The Colonnade for proximity to Prudential/Copley shopping and convention traffic.
citizenM offers compact, tech-forward guest rooms controlled by an in-room iPad.
citizenM suits travelers who accept smaller, well-equipped rooms and a modern in-room experience.
The Colonnade lists a broad room mix from Superior to Premier Luxe categories.
The Colonnade is better if you want more traditional, varied room options and larger layouts.
citizenM puts dining and nightlife around canteenM and Bubble Bath Back Bay.
Good for guests who value round-the-clock casual dining and an adults-only rooftop bar experience.
The Colonnade features LUCIE drink + dine plus a bar and a poolside bar for more traditional dining/service hours.
Pick The Colonnade for standard restaurant hours, poolside drinks and a more traditional dining setup.
citizenM does not have a swimming pool; outdoor space is the rooftop Bubble Bath patio.
If a pool is important, citizenM is not the right choice.
The Colonnade operates an outdoor seasonal pool with poolside service during summer months.
The Colonnade is the clear choice if on-site pool access matters for your stay.
citizenM emphasizes fitness access and an adults-only rooftop drinking experience.
Good for active guests who also want evening rooftop cocktails in a city setting.
The Colonnade provides fitness facilities and seasonal poolside leisure as its main wellness/outdoor draws.
Choose The Colonnade for fitness plus seasonal pool relaxation; spa options may require off-site appointments.

citizenM — Bubble Bath Back Bay is a dedicated 15th-floor champagne and cocktail bar with reservations and a 21+ policy.

The Colonnade — outdoor seasonal rooftop pool open June–August with poolside bar and loungers.

The Colonnade — publishes about 13,003 sq ft (1,208 m²) of conference/meeting space and banquet facilities.

citizenM — canteenM runs 24 hours with an all-day international menu for late arrivals and late nights.
The Colonnade has an outdoor seasonal pool open June–August; citizenM Boston Back Bay does not have a swimming pool.
citizenM Boston Back Bay is family-friendly and welcomes children of all ages, though Bubble Bath Back Bay is a 21+ rooftop bar.
The Colonnade is better suited for meetings and events, offering published conference and banquet space (approximately 13,003 sq ft / 1,208 m²).
Yes — citizenM has canteenM open 24/7; The Colonnade offers on-site LUCIE drink + dine and bar service but not 24/7 dining.
Explore how citizenM Boston Back Bay stacks up against other hotels nearby:
vs. sites like Expedia, Hotels.com and other OTAs ·