COSLUS C20 Cordless Water Flosser, F5020E (Black, Professional Set) vs Waterpik Cordless Pulse 3100 Water Flosser, WF-20CD010 (White)
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
COSLUS C20 Cordless Water Flosser, F5020E (Black, Professional Set)
People who want a cordless flosser with a 300 ml tank and a published PSI range
A rechargeable cordless water flosser with a 300 ml tank, a stated 40-130 PSI range, several modes and five tips including a tongue scraper. The manual says charge about four hours, not three, never submerge it despite IPX7, and never descale with vinegar. No adapter in the box.
Published specifications
- Manual: model C20 (F5020E); cordless, 3.7V 1400mAh
- Manual: 300 ml tank; 40-130 PSI; noise under 72 dB
- Manual: Clean, Soft, CH and Massage; auto-off after 2 minutes
- Manual: about 4 hours to charge; listing: 3 hours; 30 days claimed
- Manual: IPX7 but do not submerge; water no warmer than 40°C
- Manual: 5 nozzles, replace every 6 months; no adapter included
Strengths
- A 300 ml tank on a cordless, rechargeable handle
- Manual publishes a pressure range, 40-130 PSI
- Five nozzles in the box, including periodontal and tongue scraper
Caveats
- Manual forbids vinegar, descalers and mouthwash in the tank
- Charge time differs: 3 hours (listing) vs about 4 hours (manual)
- No warranty terms in the manual; only a 2-year badge on the maker page
Read the full COSLUS C20 Cordless Water Flosser, F5020E (Black, Professional Set) guide
Waterpik Cordless Pulse 3100 Water Flosser, WF-20CD010 (White)
Light daily use and travel where a small tank is acceptable
A small cordless water flosser with low and high settings, a Precision tip and a Tongue Cleaner, and up to nine weeks per charge according to Waterpik. The two manuals give different charger ratings and no charger is included. The listing says shower use is fine; the manuals say never immerse it.
Published specifications
- Listing: model WF-20CD010; cordless, lithium-ion, non-replaceable
- Listing: 6 oz reservoir, up to 45 seconds of flossing
- Manuals: Low and High settings on one slide switch
- Waterpik: 4-hour first charge; up to 9 weeks per charge
- Charger not included: 5V 1A USB-A (listing manual) vs 5V 3A (Waterpik)
- Manuals: two-year limited warranty; tips excluded
Strengths
- Up to nine weeks per charge, according to Waterpik
- Simple two-setting slide switch and a compact handle
- Tongue Cleaner tip included alongside the Precision tip
Caveats
- Manuals disagree on the charger rating, and none is included
- Small 6-ounce tank and only two tips, per the listing
- No Waterpik product page found to confirm listing specs
Read the full Waterpik Cordless Pulse 3100 Water Flosser, WF-20CD010 (White) guide
How to choose between them
Choose the COSLUS C20 Cordless Water Flosser, F5020E (Black, Professional Set) if your situation matches: People who want a cordless flosser with a 300 ml tank and a published PSI range. Its main caveat: Manual forbids vinegar, descalers and mouthwash in the tank.
Choose the Waterpik Cordless Pulse 3100 Water Flosser, WF-20CD010 (White) if your situation matches: Light daily use and travel where a small tank is acceptable. Its main caveat: Manuals disagree on the charger rating, and none is included.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- COSLUS product page for the C20 Dual Stream cordless water flosser Source for COSLUS C20 Cordless Water Flosser, F5020E (Black, Professional Set)
- COSLUS C20 Oral Irrigator User Manual attached to the listing (PDF) Source for COSLUS C20 Cordless Water Flosser, F5020E (Black, Professional Set)
- Waterpik Instructions for Use: Cordless Pulse 3100 Water Flosser WF-20 Series (PDF) Source for Waterpik Cordless Pulse 3100 Water Flosser, WF-20CD010 (White)
- Waterpik Water Flosser WF-20 | 21 Series manual attached to the listing (PDF) Source for Waterpik Cordless Pulse 3100 Water Flosser, WF-20CD010 (White)
Primary sources checked .