I bought this toothbrush to replace another vibrating (non-rotating) toothbrush. I haven't found any problems with this. The USB charging port is under a screw cap on the end and I fully charged it before using it. It wasn't weak. Actually, I found it a bit aggressive. The included leaflet states that the charge should last 30 days. The toothbrush comes with 9 brush heads that are said to last 3 months. So 2 years 3 months. I agree as the lifespan of the toothbrush has been so long since my last one. The only drawback is the small brush head. I have a small mouth so this works for me. It's also easier to maneuver. I also try to keep the bottom half as dry as possible. I don't know how all buttons stand up to time and moisture. I bought it at a discount. I wouldn't pay $80 for that.
Electric toothbrush Oral-B Smart 4 4900, black/pink
104 Review
💪 White Oral-B Vitality Electric Toothbrush with FlossAction for Improved Oral Health
125 Review
Electric toothbrush Oral-B Kids Mickey Mouse, blue-yellow
66 Review
Oral B Vitality Limited Precision Clean 🦷 Rechargeable Toothbrush - White Refill for Optimal Oral Cleanliness
83 Review
Breath Me TM 50pcs Black Fiber Reed Diffuser Refill Sticks 12 inch - Elegant Home Fragrance Replacement
11 Review
🍊 TheraBreath Fresh Breath Chewing Gum: ZINC with Citrus Mint Flavor - Pack of 6 (10 Count)
11 Review
Wild Fuel Dental Probiotics: Fresh Breath & Healthy Bacteria Support - Vegan, Cruelty-Free Chewable Tablets for Oral Health - 45 Mint Flavored, Sugar-Free Travel Tin
14 Review
BLIS Fresh Breath Kit: Potent BLIS K12 Oral Probiotic for Bad Breath & Halitosis Treatment - Clinically Proven Mouthwash, Tongue Scraper, Lozenges - 4 Week Supply
11 Review