These two strollers are solving different problems, which makes a direct comparison more useful than it might appear. The Doona Liki Trike S5 is a trike that converts to a pushable stroller — designed to grow with a toddler from 10 months to 3 years and eventually go autonomous. The Mockingbird Single-to-Double is a conventional stroller that adds a second seat cleanly, with solid build quality at a price that undercuts competitors like UPPAbaby. They're both clever products for different family situations.

Specs Comparison

What Each Product Is Actually Designed For

The Doona Liki S5 is for a toddler in the 10 months to 3 years range who gets bored in a stroller and wants to feel like they're doing something. In parent-push mode, a 6-month-old rides it like a tricycle with a push handle. As the child develops, they can pedal themselves or steer while a parent steers via the handle. It's genuinely engaging for toddlers who hate sitting still.

The Mockingbird Single-to-Double is a conventional single stroller ($525) that converts to a double by adding a Second Seat ($175 extra). It's a real stroller designed to take a child from birth through age 3-4, then accommodate a sibling. The canopy is large, the seat reclines fully for napping, and the fold is manageable at 26.5 lbs.

The comparison is a bit apples-to-oranges — one is a trike, one is a stroller — but both land in the $500-650 range and compete for the same toddler-years purchase decision.

The Trike Experience: What It's Like in Practice

The Liki S5 at $450 is a well-built trike — the frame is aluminum, the seat has a 5-point harness, and the canopy retracts. Parents use it for walks where the child would otherwise demand to get out and run, which derails any timeline. The trike gives the toddler autonomy within your control.

The limitations are real: it's not suitable for jogging, uneven terrain, or long distances at speed. The footprint when folded (24 x 16 x 12 inches) is smaller than a full stroller, which is a genuine asset for apartment storage or car trunks that are already crowded. At 13.4 lbs, it's light to carry.

Parents who use it consistently love it for neighborhood walks with an active 18-36 month old. Parents who expected it to replace a stroller are disappointed — you'll still need a stroller for longer outings, airport transit, and any walk where sleep is the goal.

Mockingbird as a Full Stroller System

The Mockingbird Single-to-Double punches above its $525 price. The frame is aluminum with all-terrain wheels, the seat reclines nearly flat for newborn-appropriate use with the included infant insert, and the one-step fold leaves it standing upright — the same quality-of-life feature that UPPAbaby charges $700 more to provide.

Adding the Second Seat ($175) converts it to a tandem double for two children up to 45 lbs each. The second seat faces forward under the main seat — the same configuration as the UPPAbaby RumbleSeat. For a family with a 2.5-year gap between kids, this is the entire system they need for $700 total.

The underseat basket is generous (20 lbs), the cup holder is included, and the handlebar adjusts across a reasonable height range. Mockingbird's build quality improved noticeably with the current generation — earlier models had wheel wobble complaints that appear to be addressed.

Price, Practicality, and Who Should Buy Each

If you have one child under 18 months and are buying a primary stroller: the Mockingbird Single-to-Double is the buy. At $525 with infant insert it replaces both a newborn setup and a future double stroller. The Liki Trike is not a substitute for a stroller — it supplements one.

If you already have a stroller and your 18-month-old is fighting going in it, the Liki Trike S5 at $450 is worth considering as a second piece of equipment. It solves the 'toddler who refuses to be pushed' problem specifically.

The Mockingbird's warranty is 1 year — shorter than premium competitors. Doona's warranty on the Liki is also 1 year. Neither is exceptional. Mockingbird has a strong reputation for responsive customer service and replacement parts available at reasonable cost.

Best For

• Doona Liki Trike S5 Families who already have a primary stroller and have an active 18-36 month old who resists sitting still
• Mockingbird Single-to-Double Families buying a primary stroller from birth who want sibling expansion capability without buying two frames

FAQ