Short answer
They shave the same. The 3900 adds a charging stand and a pop-up trimmer. Buy the 3600 for the lowest price, or the 3900 if you want the stand on your counter or you're buying for an older man.
Category wins in the table below: Norelco 3600 1, Norelco 3900 2, the rest a tie.
Philips Norelco 3600 vs 3900: side-by-side
| Category | Norelco 3600 | Norelco 3900 |
|---|---|---|
| Shave | Same 3000-series head | Same 3000-series head |
| Charging stand | No | Yes |
| Trimmer | No pop-up | Pop-up |
| Price | Lower | Higher |
Shaded cell = better in that category.
Which should you buy?
Choose the Philips Norelco Shaver 3600 if
- Lowest price
- Travel or backup shaver
- You want the shaver for a gym bag or office drawer
Choose the Philips Norelco Shaver 3900 if
- Want a stand
- Buying for dad or grandpa
- You want sideburns trimmed without a separate tool
The details that decide it
Pick by the accessories
There's no closeness difference to chase here.
The stand and the trimmer
The 3900 adds two things: a charging stand and a pop-up trimmer for sideburns. The stand sounds minor, but for a lot of older shavers a shaver that is always charged is the difference between using it and going back to a blade.
Charging
Both charge from a USB-A cable, and neither includes a wall adapter, so a phone charger does the job. The 3900 runs up to 60 minutes on a one-hour charge. The 3600 charges from any USB-A port, which makes it easy to top up in a car or on a laptop when you travel.
What neither one does well
Neither is as close as a mid-range foil on day-old stubble along the jawline, and both are slow on a four-day beard. Trim first if you let it grow. For an average beard shaved every day, either is enough.
Who should skip both
If you shave a dense beard daily and want a closer finish, step up to the Philips Norelco 7800. If foils suit your skin, the Braun Series 5 is the foil option at a similar budget.
Full reviews: Philips Norelco Shaver 3600 and Philips Norelco Shaver 3900.
What each one costs over five years
| Norelco 3600 | Norelco 3900 | |
|---|---|---|
| Shaver (estimate) | $65 | $80 |
| Replacement part | Philips 3000-series heads (SH30 type) | Philips 3000-series heads (SH30 type) |
| Replaced about every | 2 years | 2 years |
| Parts over 5 years | 2 × $25 = $50 | 2 × $25 = $50 |
| 5-year total | $115 | $130 |
| Cleaning cartridges (optional) | None needed | None needed |
On these numbers the Norelco 3600 costs about $15 less to own over five years. Street prices are rounded estimates from the Amazon listings checked on October 27, 2026; the live price on Amazon is the one that counts. Cartridges are optional and not in the total, because rinsing under hot water does the basic job.
Quick facts and full specs
| Norelco 3600 | Norelco 3900 | |
|---|---|---|
| Type | Rotary | Rotary |
| Shaver Notes score | 8.2 | 8.1 |
| Price tier | $ | $$ |
| Replacement part | Philips 3000-series heads (SH30 type) | Philips 3000-series heads (SH30 type) |
| Award on our list | Best budget rotary | Budget rotary with stand |
Full spec sheets
| Norelco 3600 | Norelco 3900 | |
|---|---|---|
| Shaving system | 3 rotary heads, 27 self-sharpening ComfortCut blades | 3 rotary heads, ComfortCut blades, SkinProtect |
| Head movement | 5D Pivot & Flex | 5-direction ContourFlex |
| Blade life | About 2 years (maker's figure) | Not listed |
| Wet / dry | Yes, with gel or foam, shower safe | Yes |
| Charging | USB-A cable, adapter not included | Not listed |
| In the box | Protective cap, travel pouch, cable | Charging stand, pouch, cap, USB-A cable |
| Battery | Not listed | Up to 60 min on a 1-hour charge |
| Trimmer | Not listed | Pop-up |
From the makers' specifications and the Amazon listings checked on October 27, 2026. "Not listed" means the maker doesn't describe it in the same terms.
More comparisons
Before you click buy
Philips Norelco Shaver 3600
- It's not as close as a mid-range foil, especially on day-old stubble along the jawline.
- There's no wall adapter in the box. A phone charger works.
- On a 4-day beard it's slow; trim first.
Philips Norelco Shaver 3900
- Shave quality is the same as the 3600.
- No wall adapter in the box.
FAQ
Is Norelco 3900 better than 3600?
Same shave, more accessories.
Which is better for elderly men?
The 3900, for the stand.
Do the 3600 and 3900 use the same replacement heads?
Yes. Both take Philips 3000-series heads (SH30 type), rated for about two years, so running costs are the same.
Does the Norelco 3600 come with a charger?
It comes with a USB-A cable but no wall adapter. Any USB-A phone charger works.
Can I use them wet?
Yes. Both work wet or dry, with gel or foam, and are shower safe.