Sun Princess · Sphere Class

Sun Princess: The First Ship Designed Around Being Noticed

Sun Princess left Fincantieri's Monfalcone yard on 14 February 2024 — the largest vessel Princess had ever taken delivery of, at 177,882 gross tons with 2,157 staterooms — and sailed her maiden voyage a fortnight later. She is the class original: the hull that carried the first fully glazed dome to sea, hung a glass sphere over a three-deck Piazza, runs on LNG, and assumed the Medallion from the first drawing rather than the last retrofit. Her early seasons have leaned Mediterranean, which suits her; the Dome was styled after the South of France.

Reviewed July 27, 2026Sun Princess · 14 Feb 2024 delivered↑ Sphere Class
14 Feb 2024
Delivered
177,882
Gross tonnage
2,157
Staterooms
H. Waddingham
Godmother, Barcelona 2024
Your callWhy Sun PrincessNo varnishAn advisor
01

Should Sun Princess get your week?

One honest question before the brochure copy gets a vote.

The one-question screen
Strip it back — what is Sun Princess actually for, in your trip?
02

Why Sun Princess, specifically

Every earlier Princess ship had the Medallion bolted on after the fact. Sun Princess is the first hull where the architects could assume it: doors that expect to unlock as you walk up, venues laid out knowing a drink can be summoned to any deck chair, a manifest of 4,300 that the software is supposed to keep feeling like a village. Our Built to Solve essay on Princess calls the Love Boat a debt — a televised promise of personal attention. This is the first ship engineered, keel up, to service that debt at scale.

The architecture makes the argument in glass. The Dome — the first fully glazed dome ever built on a cruise ship, styled on the South of France, indoor-outdoor pool by day and a stage after dark — sits atop the ship like a thesis statement. Below, the Piazza suspends a glass sphere over three decks of the ship's social centre. Neither is a waterslide; both are ways of saying look up, look out, be seen.

She was delivered on Valentine's Day 2024 — a date the marketing department did not waste — sailed her maiden on 28 February, and was christened that April in Barcelona by Hannah Waddingham, who smashed the champagne with the enthusiasm the role deserves. Underneath the theatre: dual-fuel LNG power and two 20.5 MW ABB Azipods, the most serious machinery Princess has ever run.

The debt, serviced by design

If the Medallion is Princess's attempt to manufacture attention with software instead of headcount, Sun Princess is the factory built for the purpose — the first ship where noticing 4,300 people was a design requirement, not an upgrade.

03

The 2,157 staterooms

Two thousand one hundred and fifty-seven staterooms — and, deliberately, the same attention promise in the cheapest of them as in the dearest.

Choosing among them

The count matters more than the categories: 2,157 staterooms is the most Princess has ever put on one hull, and the Medallion is what keeps that number from feeling like a corridor of strangers — your door releases as you reach it, and anything orderable can be sent to wherever you and your key-shaped disc happen to be standing.

Our standing advice on this ship: pick your cabin by position rather than by prestige. On a vessel this long, living three decks from the Piazza and living half a ship from it are genuinely different holidays.

The suite question, reframed

Here is the quiet radicalism Princess sells: the premium feeling is not locked behind suite doors. Plus and Premier are buyable from any stateroom — the interior guest's drink arrives at the deck chair exactly as fast as the suite guest's, which is the whole un-rationing argument of the brand in one sentence.

So spend up for space and quiet if space and quiet are what you want — but if what you're really buying is being looked after, on this ship that comes off a package price, not a cabin category.

04

Fed and entertained under glass

The widest spread of venues Princess has ever assembled, with software doing the waiting-on and arithmetic doing the queuing.

The eating

Scale bought range: more places to eat than on any earlier Princess ship, from the multi-room main dining down to the casual venues that Plus's two included meals seem tailor-made for, with Premier removing the specialty-dining meter altogether.

OceanNow is the sleeper amenity here. On 177,882 gross tons the nearest venue can be a genuine walk; ordering food and drink to wherever you already are is what turns her size from a tax into a luxury.

The evenings

When the sun drops, the Dome converts from pool terrace to performance space, and the Piazza under its suspended sphere becomes the living room of the ship — Princess kept its centre social rather than commercial, and on this hull the centre is three decks of glass.

The honest arithmetic: the theatre did not grow at the same rate as the manifest. Reserve early, arrive early, or note that Premier's reserved production-show seating earns its keep on this ship more than on any smaller one.

05

Her waters

Her opening seasons have leaned Mediterranean — fitting, for a ship whose crowning space was styled on the South of France — with Caribbean stretches in the mix. As ever with deployment, treat the pattern as a tendency and verify the map for your actual dates.

Curved glass dome above an indoor-outdoor pool terrace on a cruise ship
The Dome — the first fully glazed dome sent to sea, room for roughly 250 of her 4,300 guests. Photography to be sourced; this frame stays a placeholder until we have an image we can honestly credit.
A glass sphere suspended above a three-deck atrium
The suspended sphere over the three-deck Piazza — the class's namesake. Image to be sourced; we would rather show you a placeholder than someone else's unlicensed photograph.
06

No varnish

What the original gets right

  • The class original — first fully glazed dome afloat, the suspended-sphere Piazza, and the template every later Sphere ship copies
  • The first Princess hull designed around the Medallion rather than retrofitted with it
  • Serious modern machinery: dual-fuel LNG with two 20.5 MW ABB Azipods
  • 2,157 staterooms of range, with the attention perks buyable from the cheapest of them

What honesty requires we add

  • 4,300 guests is a crowd, however clever the software — travellers who chose Princess to avoid mega-ships should look at the older classes
  • The Dome holds about 250 people; the arithmetic of scarcity applies to the ship's best room
  • The whole experience assumes an app, a charged phone and shared location — keep your phone in the safe and the magic thins
  • First-of-class hulls carry flagship fares, and she is no exception
07

Asked often

When was Sun Princess delivered and where was she built?

Fincantieri delivered her from its Monfalcone yard on 14 February 2024, and she sailed her maiden voyage on 28 February 2024. At 177,882 gross tons she was the largest ship Princess had ever taken delivery of.

Who is Sun Princess's godmother?

Hannah Waddingham, who christened the ship in Barcelona on 23 April 2024.

What is the Dome on Sun Princess?

The first fully glazed dome ever built on a cruise ship — a South-of-France-inspired terraced space holding roughly 250 guests, with an indoor-outdoor pool by day and performance space at night.

How many staterooms and guests does Sun Princess carry?

2,157 staterooms and roughly 4,300 guests at double occupancy — the largest capacity in Princess history, shared with her 2025 sister Star Princess.

Is Sun Princess better than Star Princess?

Neither is better; they are near-identical sisters. Sun is the 2024 original with the Mediterranean lean and the first-of-class aura; Star is eighteen months younger with the early lessons applied and a Caribbean-forward start. Choose by season, fare and temperament.

08

Put Sun Princess to an advisor

What would make this trip a win?

Tell us your season, your cabin budget, and how you honestly feel about big ships and phone-based everything — we'll say plainly whether the 2024 original, her sister, or a smaller Princess class is your trip.

Is Sun Princess too big?Best cabin position on Sun PrincessSun Princess with Plus or Premier?Dome tips for sea days

Answers pulled from these pages · every figure re-verified with Princess before a booking is placed.

Circling a Sun Princess sailing and wondering if the original is worth her fare?

Ask Seabound about Sun Princess