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Home / Health & Wellness / Electric Toothbrushes / hum Smart Rechargeable
7.6 Tested Aug 19, 2026 by Team RankingRight

hum Smart Rechargeable (Sonic, 3 modes, app) review 2026

App coaching and three sonic modes at a budget price — the cheapest way to get a brushing map, if you will use it

PriceFrom $45 · checked Sep 11, 2026
Plaque removed76 %
Battery10 days

Is the hum Smart Rechargeable Worth It?

Cheapest smart toothbrush. hum makes app coaching cheap, and for a teenager who needs to be shown what they miss it is worth it. As a plain brush the Sonicare 4100 is better for the same money.

hum Smart Rechargeable Pros & Cons

Pros
  • App shows missed zones for $45
  • Three modes; light and slim
  • Heads about $5
  • Teens in our test used the app more than adults did
Cons
  • 76% plaque removal
  • No pressure sensor
  • Ten-day battery; charges on a proprietary base

hum Smart Rechargeable at a Glance

7.6 Editor Score
Cleaning performancePlaque reduction measured with disclosing tablets across six testers, and along the gumline specifically.
26/35
Comfort & pressure controlNoise, vibration in the hand, pressure sensor behaviour, gentleness on gums.
16/20
Battery & buildDays per charge at two minutes twice a day, charger type, water resistance, travel case.
11/15
Replacement head costPrice per head at the recommended three-month change, and availability of third-party heads.
12/15
Modes & appBrushing modes, timers and pacers, and whether the app coaching changed our testers' coverage.
11/15
Reader ratingNo reader ratings yet — not part of the score
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Own one? Rate it:

Rubric v1: Cleaning performance 35 · Comfort & pressure control 20 · Battery & build 15 · Replacement head cost 15 · Modes & app 15. Score = Σ ÷ 10, locked Sep 11, 2026. How we rank.

Where to buy — prices checked Sep 11, 2026

Amazon — $45

Best priceSee Price

hum Smart Rechargeable specifications

TechnologySonic
Modes3
Pressure sensorNo
Battery (our test)10 days
Head cost (each)5 USD
AppYes, with coverage map
ADA SealYes
Plaque reduction (our test)76 %

Why it scored 7.6

hum makes app coaching cheap, and for a teenager who needs to be shown what they miss it is worth it. As a plain brush the Sonicare 4100 is better for the same money.

Where it loses

Cleaning; pressure sensor.

Still the right pick for

Teens and app-motivated brushers.

hum Smart Rechargeable7.6 · $45
See Price