Mountain Buggy
Duet Double Buggy
6.7/10 overallFrom £699.00
A side-by-side double buggy built deliberately narrow so it still fits through a standard front door and supermarket aisle.
The verdict
The Duet is a side-by-side double kept narrow enough to clear a standard UK front door and shop aisles, unlike wider tandem rivals — best for parents doing a lot of on-foot urban walking with narrow doorways or public transport to navigate. From-birth use needs a separate carrycot bundle, and it isn't built for off-road terrain.
Most double buggies force a trade-off between two full-size seats and a pushchair that actually fits through doorways. The Duet is Mountain Buggy's answer to that specific problem: a side-by-side format kept narrow enough to clear a standard UK front door and most shop aisles, which the wider tandem-style doubles in this category (iCandy Peach 7 Double, Bugaboo Donkey 5 Twin) generally cannot manage without turning sideways.
Against the Out n About Nipper Double V6, the comparison is really about terrain versus town use. The Nipper is built for off-road pushing with big air-filled wheels and a wide wheelbase, which is genuinely better on gravel and muddy paths, but that width is the exact problem the Duet is designed to avoid. If daily use is mostly pavements, buses and shop doorways rather than trails, the Duet's narrower footprint is the more practical choice day to day.
From-birth use isn't included out of the box — a separate carrycot or the Heritage Carrycot Plus bundle is needed to take a newborn, priced as an add-on rather than bundled as standard the way some competitors configure it. That's a real cost consideration if both children need from-birth support at once, and buyers should budget for the bundle rather than the base buggy price alone. Against the Ickle Bubba Venus Prime Double, which is priced as a budget option from the outset, the Duet sits at a noticeably higher price point but with sturdier build quality and better resale value typical of the Mountain Buggy range.
This suits parents doing a lot of on-foot urban walking with two children close in age, particularly where narrow doorways or public transport are a daily factor. Families who need full from-birth capability for both seats immediately, or who push mostly off-road, are better served by a pram with an included carrycot or the Nipper's off-road wheelset respectively.
Is the Duet Double Buggy worth it?
- Narrow side-by-side design fits through standard doorways unlike most doubles
- Single-action fold is straightforward for one adult to manage
- Sturdy Mountain Buggy build quality with strong resale value
What are the downsides of the Duet Double Buggy?
- From-birth use needs a separate carrycot bundle, adding to the base price
- Not designed for off-road terrain the way the Nipper Double V6 is
- Higher price point than budget doubles like the Venus Prime Double
Specs
- Fold
- Single-action fold
- Width
- Narrow enough for a standard front door
- Format
- Side-by-side double buggy
- From birth
- Requires separate carrycot or Heritage Carrycot Plus bundle
- Range tier
- Heritage Collection (Luxury Collection also available)
- Bundle options
- Buggy-only, travel system, or twin travel system bundle
How we scored it
Manoeuvrability & Width
How easily the buggy handles kerbs, shop aisles and standard UK doorways, and how manageable it is for one adult to push and steer one-handed.
Purpose-built narrow width clears standard doorways where tandem doubles like the Peach 7 or Donkey 5 Twin cannot.
From-Birth Versatility
How well the buggy adapts across an age gap between siblings or twins — carrycot/car seat compatibility from newborn, seat configurations, and how long it stays useful as children grow.
From-birth use requires buying the separate Carrycot Plus bundle rather than coming included, unlike some tandem rivals.
Value for Money
What you get for the price versus rivals in this list — build quality, included accessories, and resale value weighed against RRP.
Weighted by importance for this category — see our editorial policy for how we test.
How it compares
|  |  |  | |
|---|---|---|---|---|
| Price | From £699.00 | £725.00 | £899.00 | £349.99 |
| Overall score | 6.7/10 | 7.7/10 | 7.7/10 | 7.6/10 |
| width | — | 71 cm unfolded | approx. 61 cm folded | 99.5 cm unfolded |
| configuration | — | side-by-side | tandem (modular single-to-double, second seat sold separately) | side-by-side |
| suitable_from | — | Newborn (with carrycot) to approx. 4 years | Newborn to approx. 20.5 kg per seat | — |
Frequently asked questions
What makes the Duet different from other doubles?+
It's a side-by-side format kept narrow enough to clear a standard UK front door and most shop aisles, which wider tandem doubles like the iCandy Peach 7 or Bugaboo Donkey 5 Twin generally can't manage without turning sideways.
Can it be used from birth?+
Not out of the box — a separate carrycot or the Heritage Carrycot Plus bundle is needed for a newborn, priced as an add-on rather than bundled as standard.
Is it good for off-road use?+
No — it's designed for narrow doorways and pavement use rather than terrain; the Out n About Nipper Double V6 is the better choice for gravel and muddy paths.
How does the fold work?+
It has a single-action fold that's straightforward for one adult to manage.