Waterpik PrecisionPulse Technology
How to Use the Cordless Gem Water Flosser
Compare Waterpik Cordless Water Flosser Features
 Cordless Gem 5100 |  Cordless Advanced |  Cordless Pearl |  Cordless Pulse 3100 |  Cordless 1100 | |
|---|---|---|---|---|---|
Customer Reviews | — | — | — | — | — |
Price | — | — | — | — | — |
Pressure Settings | 2: Low/High | 3: Low/Medium/High | 2: Low/High | 2: Low/High | 2: Low/High |
Removable Water Reservoir | ? | ? | ? | ? | ? |
Water Reservoir Capacity | 7oz (207ml), up to 60 seconds | 7oz (207ml), up to 45 seconds | 7oz (207ml), up to 45 seconds | 6oz (177ml), up to 45 seconds | 6oz (177ml), up to 45 seconds |
Waterproof, for shower use | ? | ? | ? | ? | ? |
# of Tips | 3 | 4 | 4 | 2 | 1 |
360-Degree Tip Rotation | EASYSPIN | Yes | Yes | No | No |
Battery Type + (Watt Hours) | Lithium ion (5.18 Wh) | Lithium ion (4.86 Wh) | NiMH | Lithium ion (5.18 Wh) | Lithium ion (4.07 Wh) |
Battery Charge Life | Up to 9 weeks of use | Up to 4 weeks of use | Up to 4 weeks of use | Up to 9 weeks of use | Up to 3 weeks of use |
Charging Time | 4 hours | 4 hours | 12 hours | 4 hours | 4 hours |
Charging | USB-C, adapter not included | Magnetic, adapter not included | USB-C, adapter not included | USB-C, adapter not included | USB-C, adapter not included |
Accessories | Travel bag | Travel bag, tip storage case | — | — | — |
Dimensions (inches) HxWxD | 11.75 x 2.5 x 3.9 | 11.65 x 2.7 x 3.8 | 11.60 x 2.5 x 3.72 | 11.75 x 2.5 x 3.75 | 11.75 x 2.5 x 3.75 |
Who should use a Waterpik water flosser?
Anyone ages 6+ can benefit from using a Waterpik water flosser to clean deep between teeth and under the gumline where other products can't reach. It's also great for cleaning braces and other orthodontics, bridges, crowns, and dental implants.
Is it safe to add mouthwash or other additives in my water flosser?
Yes, but please do not exceed a 1:1 ratio of water to mouthwash. You can also add therapeutic mouth rinse (as prescribed by your dental professional) or hydrogen peroxide (3%). After, run a full reservoir of clean warm water though unit to rinse.
Can I purchase additional or replacement tips? Which flossing tips are included?
Genuine Waterpik flossing tips are available separately; 3 tips for a variety of needs and multiple users included:
1 Precision Tip (JT-450E)
1 Plaque Seeker Tip (PS-100E)
1 Orthodontic Tip (OD-100E)
How do I charge the Waterpik Cordless Gem 5100 water flosser?
LED flashes when battery is low and turns red when depleted
Connect cable to the unit (USB-C) and then to a standard USB adapter rated 5V, up to 3A (adapter not included)
LED pulses slowly while charging and becomes solid when fully charged
Is this product easy to clean and maintain? How do I remove the water reservoir?
Hold power handle & pull reservoir down to remove - clean in top rack dishwasher (air/non-heated dry) or hand wash
Monthly: Add 1 part white vinegar + 2 parts warm water to reservoir, run through unit; repeat with full reservoir of warm water only
Not all water flossers are the same. Choose the Waterpik brand and take control of your oral health.
- #1 water flosser brand recommended by dental professionals*
- Accepted by the ADA for safety and effectiveness
- Backed by 80+ clinical studies
*Professional AAU, 400 dental professionals, October 2025
Shop Water Flossers
Shop Cordless Water Flossers
Shop Sonic-Fusion
Shop Complete Care
Not all water flossers are the same. Choose the Waterpik brand and take control of your oral health.
- #1 water flosser brand recommended by dental professionals*
- Accepted by the ADA for safety and effectiveness
- Backed by 80+ clinical studies
*Professional AAU, 400 dental professionals, October 2025
Shop Water Flossers
Shop Cordless Water Flossers
Shop Sonic-Fusion
Shop Complete Care
Waterpik PrecisionPulse Technology
How to Use the Cordless Gem Water Flosser
Compare Waterpik Cordless Water Flosser Features
Cordless Gem 5100 | Cordless Advanced | Cordless Pearl | Cordless Pulse 3100 | Cordless 1100 |
|---|---|---|---|---|
| Customer Reviews | ||||
| — | — | — | — | — |
| Price | ||||
| — | — | — | — | — |
| Pressure Settings | ||||
| 2: Low/High | 3: Low/Medium/High | 2: Low/High | 2: Low/High | 2: Low/High |
| Removable Water Reservoir | ||||
| ? | ? | ? | ? | ? |
| Water Reservoir Capacity | ||||
| 7oz (207ml), up to 60 seconds | 7oz (207ml), up to 45 seconds | 7oz (207ml), up to 45 seconds | 6oz (177ml), up to 45 seconds | 6oz (177ml), up to 45 seconds |
| Waterproof, for shower use | ||||
| ? | ? | ? | ? | ? |
| # of Tips | ||||
| 3 | 4 | 4 | 2 | 1 |
| 360-Degree Tip Rotation | ||||
| EASYSPIN | Yes | Yes | No | No |
| Battery Type + (Watt Hours) | ||||
| Lithium ion (5.18 Wh) | Lithium ion (4.86 Wh) | NiMH | Lithium ion (5.18 Wh) | Lithium ion (4.07 Wh) |
| Battery Charge Life | ||||
| Up to 9 weeks of use | Up to 4 weeks of use | Up to 4 weeks of use | Up to 9 weeks of use | Up to 3 weeks of use |
| Charging Time | ||||
| 4 hours | 4 hours | 12 hours | 4 hours | 4 hours |
| Charging | ||||
| USB-C, adapter not included | Magnetic, adapter not included | USB-C, adapter not included | USB-C, adapter not included | USB-C, adapter not included |
| Accessories | ||||
| Travel bag | Travel bag, tip storage case | — | — | — |
| Dimensions (inches) HxWxD | ||||
| 11.75 x 2.5 x 3.9 | 11.65 x 2.7 x 3.8 | 11.60 x 2.5 x 3.72 | 11.75 x 2.5 x 3.75 | 11.75 x 2.5 x 3.75 |
Who should use a Waterpik water flosser?
Anyone ages 6+ can benefit from using a Waterpik water flosser to clean deep between teeth and under the gumline where other products can't reach. It's also great for cleaning braces and other orthodontics, bridges, crowns, and dental implants.
Is it safe to add mouthwash or other additives in my water flosser?
Yes, but please do not exceed a 1:1 ratio of water to mouthwash. You can also add therapeutic mouth rinse (as prescribed by your dental professional) or hydrogen peroxide (3%). After, run a full reservoir of clean warm water though unit to rinse.
Can I purchase additional or replacement tips? Which flossing tips are included?
Genuine Waterpik flossing tips are available separately; 3 tips for a variety of needs and multiple users included:
1 Precision Tip (JT-450E)
1 Plaque Seeker Tip (PS-100E)
1 Orthodontic Tip (OD-100E)
How do I charge the Waterpik Cordless Gem 5100 water flosser?
LED flashes when battery is low and turns red when depleted
Connect cable to the unit (USB-C) and then to a standard USB adapter rated 5V, up to 3A (adapter not included)
LED pulses slowly while charging and becomes solid when fully charged
Is this product easy to clean and maintain? How do I remove the water reservoir?
Hold power handle & pull reservoir down to remove - clean in top rack dishwasher (air/non-heated dry) or hand wash
Monthly: Add 1 part white vinegar + 2 parts warm water to reservoir, run through unit; repeat with full reservoir of warm water only