The Celebrity Infinity launched in 2001. The Celebrity Ascent debuted in 2023. That's more than two decades of evolution packed into one fleet — and the differences go far deeper than fresh carpet and faster Wi-Fi.
If you're trying to decide which Celebrity ship fits your travel style, understanding the gap between their oldest and newest vessels is genuinely useful. It's not just about age. It's about a fundamentally different cruise experience.
At a Glance
- Celebrity's oldest active ships are the Millennium-class vessels, launched between 2000 and 2002
- The newest ships are the Edge-class ships, with Celebrity Ascent as the most recent addition (November 2023)
- Edge-class ships introduced the Magic Carpet, Infinite Verandas, and a redesigned suite experience
- Millennium-class ships have been significantly refurbished under Celebrity's "Revolution" program
- The right ship depends on your itinerary, cabin preference, and what you value most onboard
What Are Celebrity's Oldest Ships Still in Service?
Celebrity's Millennium class represents the line's oldest active hardware. Celebrity Millennium, Celebrity Infinity, Celebrity Summit, and Celebrity Constellation all entered service between 2000 and 2002. Each carries roughly 2,000 passengers at double occupancy.
These ships were refined for their era — graceful, spacious, and well-proportioned. They don't feel cramped the way some older ships do. Celebrity has invested heavily in modernizing them through its "Celebrity Revolution" refurbishment program, updating staterooms, restaurants, and public spaces.
What the Revolution Refurbishment Actually Changed
The Revolution upgrades added the Rooftop Garden, refreshed the main pool area, and brought the suite experience closer to modern standards with The Retreat — Celebrity's exclusive suite-class enclave. Celebrity Summit, for example, completed its Revolution refurbishment and now features updated dining venues and redesigned staterooms.
That said, the bones are still early-2000s. You won't find an Infinite Veranda. The cabin layouts are more traditional, and the ship's overall aesthetic reflects a different design philosophy.
What Makes the Edge-Class Ships Different?
Celebrity Edge launched in 2018 and changed the conversation around premium cruise ship design. Four Edge-class ships have followed: Celebrity Apex (2020), Celebrity Beyond (2022), and Celebrity Ascent (2023).
The signature innovation is the Magic Carpet — a cantilevered deck that floats alongside the ship and serves as a bar, dining venue, and tender platform depending on the day. It's genuinely striking. There's nothing like it on the older ships.
The Infinite Veranda: A Real Shift in Cabin Design
Edge-class staterooms introduced the Infinite Veranda — a convertible space where the floor-to-ceiling glass wall opens to bring the outside in. It's not a traditional balcony. The railing doesn't lower completely, but fresh air fills the room and the views are expansive.
For travelers who spend meaningful time in their stateroom, this design difference matters. Millennium-class balconies are classic and perfectly functional — but they're a separate, smaller space.
The Retreat on Edge Class vs. Millennium Class
Celebrity's suite product, The Retreat, exists on both ship generations. But the Edge-class version was built with it in mind from the start. The Retreat Sundeck, The Retreat Lounge, and Luminae restaurant all feel purpose-built on Ascent and Beyond.
On Millennium-class ships, The Retreat was retrofitted. It works well, and the service standards are consistent across the fleet — but the spatial flow is different. If Celebrity Cruises suite perks are a priority, Edge class has the edge.
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How Do the Dining Experiences Compare?
Both ship generations offer specialty dining, a main dining room, and buffet options. The differences are in variety and concept.
Edge-class ships introduced Le Grand Bistro, Eden Restaurant, and Le Voyage by Daniel Boulud (on Beyond and Ascent). Eden in particular is a striking three-story venue with a theatrical atmosphere and a menu built around the experience of the space itself.
Millennium-class ships offer reliable favorites — Murano (fine dining), Tuscan Grille, and Qsine — in venues that have been updated but don't carry the same architectural drama. The food quality across Celebrity is consistently strong. It's the setting that shifts.
Which Ship Should You Choose for Your Itinerary?
Here's where itinerary and ship pairing genuinely matters.
| Ship Class | Good Fit For | Ports & Regions |
|---|---|---|
| Edge class (Ascent, Beyond) | Design-focused travelers, suite guests, Caribbean and Mediterranean | Caribbean, Mediterranean, Canary Islands |
| Millennium class (Summit, Constellation) | Alaska, New England, smaller ports, budget-conscious premium cruisers | Alaska, Bermuda, Pacific Coast |
The Millennium-class ships are better suited to destinations with tight port access. Alaska is a good example — Celebrity Millennium homeports seasonally in Alaska and fits those waters well. A larger Edge-class ship wouldn't change the glacier views, but the Millennium's size is an asset in certain ports.
If you're cruising the Mediterranean, an Edge-class ship gives you more to do at sea and a more contemporary environment. For a primer on European entry requirements before you sail, the ETIAS and EES guide is worth a read before you book.
For a broader look at how Celebrity stacks up against another premium line, Celebrity Cruises vs Princess Cruises walks through the key differences in style and itinerary fit.
A Note on Value Across Both Generations
One thing worth knowing: Celebrity's oldest ships often offer stronger per-night value. Because they're older hardware, pricing tends to be lower — even after Revolution refurbishments. For travelers who care more about destination than onboard architecture, a Millennium-class sailing can be an excellent choice.
Edge-class ships command a premium. For some travelers, the design experience is worth every dollar. For others, the price difference is better spent on a suite upgrade or shore excursions.
Did you know Celebrity's Celebrity Millennium was the first ship in the fleet to feature a glass-blowing studio at sea? The Hot Glass Show is still part of the onboard programming on several Millennium-class ships — a detail that says a lot about how Celebrity thinks about experiential programming.
Why Talking to an Advisor Actually Changes the Outcome
Choosing between a Millennium-class and an Edge-class ship isn't just a fun comparison exercise. It affects your cabin type, your dining options, your onboard atmosphere, and ultimately how much you enjoy the trip.
The same itinerary can sail on very different ships depending on the season and year. Booking directly through Celebrity's website won't flag that. An advisor familiar with the fleet — and with how Celebrity's pricing and promotions work — can match you to the right ship for the right reasons.
If you're weighing Celebrity against another premium line entirely, the comparison between Royal Caribbean's oldest and newest ships is a useful parallel read.
When you're ready to start planning, Ohana Cruises is here to help. Reach out and let's find the Celebrity sailing — and the right ship — that fits what you're actually looking for.
