Bugaboo Donkey 5 vs. Cybex Gazelle S2
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Bugaboo Donkey 5 vs. Cybex Gazelle S2

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The transformable double strollers that double as storage machines

These two strollers are interesting because they treat “mono → double” more like a design philosophy than an afterthought. Bugaboo’s Donkey (here: Donkey 5) expands sideways into a true side-by-side and has the integrated side basket as part of the chassis; Cybex’s Gazelle S2 follows the modular/tandem idea with a removable shopper and an intentional second-seat path.


TL;DR — quick decision guide

  • Pick the Donkey 5 if you want side-by-side accessibility, an integrated mono-to-side-by-side design, very good all-terrain capability and lots of on-board storage — but plan for heavier weight and follow maintenance tips to limit long-term chassis wear.
  • Pick the Gazelle S2 if you want a modern modular stroller with a compact fold, lots of configuration options and a remove-and-go shopper basket — but note the second seat has usage limits and isn’t fully interchangeable with the main one.

At-a-glance specs

ModelStroller weight (single/compact)Max per seatLower basket / shopper
Bugaboo Donkey 5 (Mono)~30.6 lb (≈13.9 kg). Dimensions vary by configuration~48.5 lbLarge side basket (integral to mono/duo design)
Cybex Gazelle S228.4 lb (12.9 kg). Compact fold options50 lbLarge lower basket (~30 lb) + detachable shopper (~25 lb)

Seats & comfort

Bugaboo Donkey 5

  • Bucket-style reversible seats with included bassinets.
  • Narrower seat frames mean bigger toddlers may feel snug after ~3 years.
  • Premium textiles and classic Bugaboo finish.

Cybex Gazelle S2

  • Main seat: adjustable backboard + leg rest, near-flat recline.
  • Second seat: sold separately, fewer recline/mounting options.
  • Slightly less premium feel in textiles compared to Bugaboo.

Storage modes

  • Donkey 5: side basket is integral to the mono↔duo conversion, making storage part of the chassis design.
  • Gazelle S2: lower basket + detachable shopper (removable, convenient, ~25 lb capacity).

Mechanics, drivability & longevity

Donkey 5

  • Wide, stable, excellent for rough terrain.
  • Telescoping expansion points can loosen over time; requires proactive maintenance.

Gazelle S2

  • Simpler core, compact fold.
  • Long chassis can feel cumbersome; front-heavy in some double setups.
  • Softer suspension and weaker feel in upper fold mechanisms compared to Donkey.

Folding & transport

  • Donkey 5: can fold one-piece (bulky) or more compact if disassembled.
  • Gazelle S2: folds compactly, often with seats attached, fewer steps required.

Newborn options

  • Donkey 5: bassinet included; compatible with car seat adapters.
  • Gazelle S2: cot sold separately; infant seat adapters included.

Verdict for parents

  • Donkey 5 = choose if you value side-by-side seating, elevated accessibility, superior push and terrain handling, and integrated shopping storage. Heavy and needs care to maintain longevity.
  • Gazelle S2 = choose if you want a narrower modular stroller, easy fold, and a handy removable shopper basket. Be aware of the second seat’s limits and the less premium fit/finish.

Maintenance tips

  • Donkey 5: check/tighten telescopic joints regularly, clean pivot points, avoid chronic overloading.
  • Gazelle S2: follow fold instructions to avoid strain, check seat adapter placement per manual.

Images: Strollerina / manufacturer press kits