Colgate
Colgate hum Smart Electric Toothbrush (Rechargeable)
$69.99Cheaper
Released 2020
Best Electric Toothbrushes · head-to-head
A sourced, side-by-side comparison. Colgate hum Smart Electric Toothbrush (Rechargeable) is cheaper at $69.99. Every spec and price links to its source.
Colgate
$69.99Cheaper
Released 2020
Laifen
$79.99
On the specs we track, they're closely matched. The Colgate hum Smart Electric Toothbrush (Rechargeable) is the cheaper at $69.99.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $69.99 | $79.99 |
| Brand | Colgate | Laifen |
| Released | 2020 | — |
| Brush action | sonic | oscillating-vibrating (60° oscillation, 66,000 vibrations/min) |
| Cleaning modes | 3 | 3 |
| Battery days | 10 | 30 |
| Pressure sensor | No | — |
| Smart app | Yes | Yes |
| Smart timer | Yes | Yes |
| Travel case | Yes | No |
| Release year | 2020 | — |
Sources — Colgate hum Smart Electric Toothbrush (Rechargeable): prnewswire.com (verified 2026-06-15). Laifen Wave Electric Toothbrush: laifentech.com (verified 2026-07-07).
Where the two actually differ on the specs we track (3 of 7). Matching specs are omitted.
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
All three sources verified against live pages. Expect a likable app-guided experience but mediocre cleaning: Digital Trends and Engadget both found the guided-brushing app genuinely improves coverage (Engadget's self-test jumped from 49% to 98% coverage), and both liked the lightweight, well-designed body — but Digital Trends called cleaning merely superficial and Reviewed's plaque-reveal dye test left stain the Hum could not remove, with 'poor build quality' and 'short battery life' listed as cons. Rewards praise and affordability each trace to a single source. (3 sourced reviews, 2 lab-tested.)
Praised: Guided-brushing app meaningfully improves coverage and technique; Lightweight, comfortable, well-designed handle; Points-based rewards program is a clever incentive to brush more.
Flagged: Mediocre plaque removal — superficial cleaning, failed Reviewed's plaque dye test; Cheap-feeling components: flimsy power button, unlined travel case; No true in-mouth position sensing — can be fooled by fake brushing motions.
No sourced tester review yet.