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If you read a 2026 ranking that recommends the “Sonicare 7100”, that brush barely exists on Amazon US. When we checked on October 30, the only 7100 listed was a single imported European unit from a reseller. The 7300 is the model Philips actually stocks there, it sits one step up, and on that day it cost about $140 against the $199.99 Amazon shows as its typical price.
What’s in the box
One handle, a charging stand, a travel case that also charges the brush, and three A3 Premium All-in-One heads. There’s no wall plug, so you’ll need a USB adapter you already own. The three heads matter: A3s are Philips’ most expensive replacements, and getting three means your first nine months of heads are paid for.
How it brushes
Philips quotes 62,000 bristle movements a minute from the Next-Generation drivetrain it introduced across its 2026 range. In practice that means the familiar Sonicare tingle with a little more bite on the highest setting. You get four modes (Clean, Sensitive, Gum Health, White) and three intensities, which gives a nervous first-time sonic user a soft start and gives a heavy plaque builder somewhere to go.
The pacer is different from older Sonicares. Instead of buzzing every 30 seconds for four quadrants, it nudges you every 20 seconds, which splits the mouth into six zones. It feels fussy for a day, then it’s simply how you brush.
Pressure warning you can see
A ring of light at the base of the handle lights up when you press too hard. That’s a real step up from the 4100 and 5900, which only buzz. A light is easier to notice in the mirror, and for anyone whose gums are receding from scrubbing, noticing is the whole battle.
The app
The app gives guided brushing and reminders. It’s useful for the first few weeks while it shows you which zones you rush. After that most people stop opening it, and the brush works exactly the same without it.
| Cleaning action | Sonic, Next-Generation drivetrain (62,000 movements a minute) |
|---|---|
| Brushing modes | 4 (Clean, Sensitive, Gum Health, White) |
| Intensity levels | 3 |
| Pressure sensor | Yes: light ring at the base |
| Timer | SmartTimer, BrushPacer every 20 seconds, head reminder |
| Battery (brand figure) | Up to 21 days |
| Charging | Charging stand plus charging travel case (no plug in the box) |
| Travel case | Charging case |
| App | Yes, guided brushing |
| ADA Seal | Not stated on listing |
| Brush heads | A3 Premium All-in-One (click-on) |
| Warranty | 2 years |
| Status | New generation; on Amazon US since December 2025 |
| Model number (US listing) | HX7421/07 |
| On Amazon US since | December 2025 |
| Amazon US check | Sold by Amazon.com (Oct 30, 2026) |
What it really costs
Handle Replacement heads
The gap with the 5900 shrinks over time. The 5900 is about $50 cheaper on day one, but it comes with two C3 heads, and genuine C3s were selling as a two-pack at roughly $15 a head on October 30. A3 four-packs worked out a little cheaper per head. Three years in, the two brushes are only about $30 apart.
7300, 5900 or Prestige 9900?
Choose the 5900 if you want the newer motor and three intensities and nothing else. Choose the 7300 if you want the light-ring pressure warning, a gum health mode, the app or the charging case. The Prestige 9900 adds SenseIQ, which turns power down for you when you lean on it, but it costs nearly three times as much. Our 5900 vs 7300 page goes row by row.
Colours, model numbers and price
Amazon US sells the 7300 in four colours, all at about $140 when we checked: white (HX7420/07), black (HX7421/07), pink (HX7422/04) and navy (HX7423/05). All four were first listed on December 7, 2025, and sold by Amazon.com. The colour is the only difference.
62,000 movements, and what that means
Philips quotes 62,000 bristle movements a minute for the 7300 and says performance doesn’t drop in hard-to-reach areas. The number is the same one Philips uses for its Prestige flagships. In practice it means the 7300 feels lively on its high setting and still gentle on its low one.
The charging case in practice
The case charges the brush, so on a trip you carry the case and one cable. At home it charges on its stand. Neither comes with a wall adapter, so you’ll need a USB phone plug. With a battery rated at up to 21 days, many people will only charge it in the case once on a long trip.
Where the Sonicare 7100 went
Plenty of 2026 lists recommend the Sonicare 7100, the 7300’s sibling. On Amazon US the only 7100 we found on October 30 was a European unit (HX7421/06) from a third-party seller. The 7300 is the version Amazon itself sells, and it comes with three A3 heads instead of two.
It’s the Sonicare we’d buy for someone managing gum problems who also travels: a mode built for gums, a pressure light you can’t miss, and a case that keeps it charged. Just check you have a USB plug before it arrives.
Worth putting beside it
The Sonicare 7300 is the baseline here. Plus lines are better, minus lines are worse, and both come off the spec sheet.
Philips Sonicare 5900
about $90 on Oct 30, 2026
- $50 cheaper up front
- about $28 less over three years
- no travel case
- no app
Philips Sonicare 9900 Prestige
about $380 on Oct 30, 2026
- $240 dearer up front
- about $268 more over three years
Oral-B iO Series 9
- heads cost $4.05 less each
- $80 dearer up front
- about $33 more over three years
Do I need the app and the sensors?
Most people open it for a week. The models that carry an app are worth buying for the extra modes, the charging case and the quieter drive, and you can treat the tracking as a free extra.
What we checkedThe iO9 maps 16 zones and the 7300 tracks brushing too, but both clean with the same heads and the same motors as the cheaper handles in their own ranges.
Our pick for thisPhilips Sonicare 7300Price
How much will the replacement heads cost me?
Roughly $30 to $60 a year per person at four heads a year, which over three years usually beats what you paid for the handle. Price the heads before you pick the brush, not after.
What we checkedGenuine heads we priced on Amazon US on October 30 ran from about $2.49 each (Aquasonic, eight in a box) to about $18.46 each (Quip Rev).
Our pick for thisAquasonic Black SeriesPrice
Things readers check with us
If you’ll use the gum health mode, the charging case or the light-ring pressure warning, yes. Over three years the two cost about the same once you count the extra heads in the 7300 box.
Does the Sonicare 7300 come with a charger?
It comes with a charging stand and a charging travel case, but no wall plug. Use any USB power adapter.
What heads does the Sonicare 7300 use?
It ships with A3 Premium All-in-One heads, but any current Sonicare click-on head fits, including the cheaper C2.
Where is the Sonicare 7100?
On Amazon US in late October 2026 we found only one imported 7100 from a third-party seller. The 7300 is the version sold by Amazon itself.
How long does the battery last?
Philips rates it at up to 21 days of normal brushing on a full charge.
Which 7300 colour is cheapest?
They were all about $140 on Amazon US when we checked. Pick the colour you like.
Does the 7300 need the app?
No. The app adds guided brushing and tips; modes and intensities work from the handle.
