Thoroughly Reviewed
This product was evaluated based on verified specifications, safety standards, and independent research. Last tested: June 2026.
Smily Mia
Smily Mia Penguin Wearable Mitten Baby Teether, 2-Pack
Our Score
out of 10
4.7/5 rating
Where to Buy
Pros
- ✓52,720 global reviews at 4.7★ — one of the most-reviewed teethers on Amazon
- ✓Wearable mitten design stays on baby's wrist — no dropping or losing
- ✓2-pack value — keep one in use, one freshly cleaned
- ✓Penguin shape is engaging and easy for young babies to bring to their mouth
- ✓100% silicone — BPA, heavy metal, latex, lead, and phthalate free
- ✓Dishwasher-safe for effortless daily hygiene
- ✓BSR #531 in Baby — established bestseller in the infant category
Cons
- ✗Wrist strap may be loose on very small newborn wrists
- ✗Suited to 0–6 months — babies quickly outgrow the mitten format
- ✗Some parents find the strap difficult to fasten one-handed
Our Bottom Line
In-Depth Review
The fundamental challenge with teethers for babies under 3 months is that babies at this age cannot reliably hold anything. They wave their hands toward their faces, suck on their fists, and drop everything — repeatedly. The Smily Mia Penguin solves this by attaching the teether directly to the wrist, making the teether part of the hand rather than an object the hand must hold.
The Wearable Mitten Design
The silicone wrist strap loops securely around the baby's wrist. When the baby brings their hand to their mouth — the instinctive self-soothing behaviour that begins from birth — the penguin teether arrives at the mouth along with it. No coordination required, no dropping, no searching for a lost teether on the floor. For parents of newborns and young infants, eliminating the toy-retrieval loop from bath, cot, and pram is a measurable quality-of-life improvement.
Review Volume as a Reliability Signal
With 52,720 global reviews at 4.7 stars, the Smily Mia Penguin has one of the largest review bases in the teething toy category. At this scale, the rating is statistically robust — not a product with 200 reviews that could be gamed or skewed by a single batch of experience. The consistent distribution (85% five-star) across tens of thousands of buyers over multiple purchase cohorts indicates a genuinely reliable product.
Practical Use Notes
The 2-pack format is practically valuable: one in use, one in the dishwasher. The dishwasher-safe silicone withstands daily cleaning without degrading. The strap should be checked at each use — ensure it is comfortably snug and not tight enough to restrict circulation. As babies approach 5–6 months and develop a palm grip, they will naturally transition to conventional hand-held teethers, at which point the mitten format becomes less useful.
Disclaimer: As an Amazon Associate we earn from qualifying purchases. Always supervise infants during teething play. Check wrist strap fit before each use — ensure it is not too tight. Inspect product regularly and discard if damaged.
How We Evaluate Teething Toys
Every product on PregnancySprout is evaluated against a consistent framework: verified manufacturer specifications, independent safety certifications (JPMA, ASTM, CPSC compliance), verified user feedback patterns from multiple retail platforms, and comparison against direct competitors in the same price tier.
Our scoring reflects real-world usability for parents — not just spec-sheet comparisons. We weight safety (40%), value for money (25%), ease of use (20%), and longevity/durability (15%). Products scoring above 8.5 represent exceptional value in their category.
Affiliate disclosure: PregnancySprout may earn a commission from purchases made through links on this page. This does not affect our recommendation — we only suggest products we genuinely believe offer good value. Learn more about how we test products.
Specifications
- Brand
- Smily Mia
- Pack Size
- 2 units
- Material
- 100% silicone
- Safety
- BPA-free, heavy metal free, latex-free, lead-free, phthalate-free
- Dimensions
- 4.4 × 1.85 × 3.7 inches; 1.55 oz
- Design
- Wearable mitten — penguin shape with wrist strap
- Care
- Dishwasher-safe
- Age Range
- 0–6 months
- Amazon Rating
- 4.7★ from 52,720 global reviews
- BSR
- #531 in Baby · #16 in Baby Teether Toys
| Specification | Value |
|---|---|
| Brand | Smily Mia |
| Pack Size | 2 units |
| Material | 100% silicone |
| Safety | BPA-free, heavy metal free, latex-free, lead-free, phthalate-free |
| Dimensions | 4.4 × 1.85 × 3.7 inches; 1.55 oz |
| Design | Wearable mitten — penguin shape with wrist strap |
| Care | Dishwasher-safe |
| Age Range | 0–6 months |
| Amazon Rating | 4.7★ from 52,720 global reviews |
| BSR | #531 in Baby · #16 in Baby Teether Toys |