Harmony of the Seas J4 Suite Cabins
Cabin category J4 is a standard-size suite on Harmony of the Seas: 28 J4 cabins on decks 9, 11 and 12, each 287 sq ft with an 80 sq ft balcony.
Harmony of the Seas J4 suite floor plan
- Sleeps
- Up to 2 guests
- Beds
- Two Royal King beds (each can convert into two twin-size beds) · One double sofa bed and one fold-down Pullman bed in staterooms with up to 5 guests
- Bathroom
- One bathroom with tub
- Living space
- Bedroom areaSitting area with sofa · Private balcony
How Harmony of the Seas J4 cabins compare
Harmony of the Seas J4 suite cabins are standard size: the same 287 sq ft as 2 other suite categories, with an 80 sq ft balcony, the smallest among suite categories; none of its cabins are connecting cabins.
J4: 287 sq ft · tied #10 with 2 others of 12 suite categories
Find Harmony of the Seas J4 cabins on the deck plan
Deck 9 · 12 J4 cabins
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Where J4 suite cabins sit on Harmony of the Seas
All J4 cabins are midship. J4 cabins are on decks 9, 11 and 12; deck 9 has the most (12).
What's inside a Harmony of the Seas J4 suite
Enjoy the suite life as you relax in your intimate Junior Suite that offers the added space of a suite plus a private balcony. It's luxury with a budget, with many appealing options. On Harmony of the Seas, Junior Suite staterooms (category J4) measure 287 sq ft, plus an 80 sq ft balcony, and sleep up to 2 guests. Beds: two Royal King beds, each converting into two twin beds and one double sofa bed and one fold-down Pullman bed (in rooms for 5). The suite has a bedroom area, a sitting area with sofa, a private balcony and one bathroom with tub. Guests in this suite get Sea Class perks, listed below. Harmony of the Seas has 28 J4 cabins, on decks 9, 11 and 12.
One bathroom with tub. Bedroom area, sitting area with sofa, and private balcony.
Included
- Dedicated stateroom attendant
- Daily cleaning service
- Exclusive bedding collection
- Stateroom climate control
- Ample closet and storage
- In-room HD-TV
- In-room safe for valuables
- Hair dryer
- Deluxe toiletries: shampoo, conditioner & body wash
Harmony of the Seas J4 cabin photos
All 28 cabins in category J4
Known issues in cabin category J4
No issues recorded for J4 cabins.
Suite prices on Harmony of the Seas
Prices are by cabin type. We don't price individual categories like J4; "See suite fares" opens current suite fares with our booking partner.
Suite is $108 more per night than a balcony.
Fares as of Oct 13, 2026. Prices change daily.
55% of upcoming Suite sailings are currently below their recent average fare.
J4 on other Royal Caribbean ships
Harmony of the Seas J4 cabin FAQ
How big is a Harmony of the Seas J4 suite?
A Harmony of the Seas J4 cabin is 287 sq ft inside plus an 80 sq ft balcony: 367 sq ft in total. That is the most common suite size on Harmony of the Seas.
How many Harmony of the Seas J4 cabins are there, and on which decks?
Harmony of the Seas has 28 J4 cabins: 12 on deck 9, 8 on deck 11 and 8 on deck 12.
How many people can stay in a Harmony of the Seas J4 cabin?
Every Harmony of the Seas J4 cabin with a recorded occupancy sleeps up to two.
What's the difference between cabin category J4 and J3 on Harmony of the Seas?
Harmony of the Seas J4 and J3 cabins are the same size (287 + 80 sq ft). J3 cabins are on decks 7, 8 and 14; J4 cabins are higher, on decks 9, 11 and 12.
Do Harmony of the Seas J4 cabins connect?
No Harmony of the Seas J4 cabins are recorded as connecting cabins.