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MG3919/50 vs BT3620/40: Choose by Grooming Jobs and Water Care

Pick the MG3919/50 for a multipurpose grooming kit; pick the BT3620/40 for a dedicated beard dial and a rinseable handle. The trade-off is practical: the toolkit stays dry, while the waterproof beard model is restricted to facial hair.

Published by Pickoryx · Published 2026-10-10

Source checked 2026-10-10 16:35 UTC

Products compared

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The buying question

Do you need head-hair and nose tools, or a dedicated beard dial that fits a wet bathroom routine?

Broader grooming coverage versus fine beard-length selection and whole-trimmer rinsing.

Quick verdict

When the recommendation changes
  • Needing both a multipurpose toolkit and shower use means this pair does not combine your requirements in one option.

The differences that matter

Facial Or Multiuse Fit

Philips Norelco All-in-One 3000 MG3919/50

Facial-hair grooming plus hair-clipping combs and a nose-trimming attachment.[1]

Philips Norelco Beard Trimmer 3000 BT3620/40

Beard dial with 40 settings in 0.5 mm increments; facial hair only, not scalp or body hair. Two guards cover 0.5–10 mm and 10.5–20 mm.[2, 4]

What this changes: Choose the MG3919/50 when one purchase must also cover head hair and nose detailing. Choose the BT3620/40 when fine beard-length selection is the priority and those other jobs are already covered.[1, 2, 4]

The better fit depends on your priorities

Wet Dry Handle Care

Philips Norelco All-in-One 3000 MG3919/50

Dry use only; never rinse or immerse the handle. Rinse detached cutting parts and guards, then air-dry before reattaching.[3]

Philips Norelco Beard Trimmer 3000 BT3620/40

Waterproof, with cordless bath/shower use and tap cleaning permitted. Keep its USB cable and power supply dry.[4]

What this changes: For a bathroom routine built around rinsing the whole trimmer, choose the BT3620/40. The MG3919/50 requires keeping water away from the handle even when cleaning its removable parts.[3, 4]

Best fit: Philips Norelco Beard Trimmer 3000 BT3620/40View Philips Norelco Beard Trimmer 3000 BT3620/40 on AmazonPaid link

Best for your routine

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

Pay extra only for the routine you will actually use; a lower price cannot compensate for choosing the wrong grooming scope.

Insufficient price history for a purchase-timing recommendation.

Limitations

  • This is a manufacturer-documentation comparison, not a hands-on cutting, comfort or durability test.
  • The MG3919/50 cannot be used in the shower. Washable attachments do not make its handle washable.
  • The BT3620/40 is not a substitute for a scalp or body trimmer. Waterproof use is cordless only.

Questions shoppers ask

Does the beard dial eliminate all guard changes?

No. Its manual lists two guards: 0.5–10 mm and 10.5–20 mm. The dial provides fine selection within the appropriate guard range, rather than one guard for every length.

What if I want a shower-friendly tool for head hair too?

Neither option here combines those requirements: the MG3919/50 covers hair clipping but requires dry use; the BT3620/40 permits shower use but excludes scalp trimming.

Methodology and sources

Compared intended grooming roles, length selection and water-care instructions for these two US models.

Software assisted document comparison and consistency checking.

View 4 sources
  1. 1.Philips Norelco MG3919/50 product informationPhilips · Official specifications · Source checked 2026-10-10 16:34 UTC
    Evidence used on this page
    • 13in1 trimmer; Clip your hair, your way; Nose Trimmer: Exact US model page documents facial grooming, hair clipping combs and nose tool.
  2. 2.Philips Norelco BT3620/40 product informationPhilips · Official specifications · Source checked 2026-10-10 16:34 UTC
    Evidence used on this page
    • Craft your beard with the precision you need: The beard-length dial has 40 settings in half-millimeter increments.
  3. 3.MG3919/50 support-linked user manualPhilips · Official specifications · Source checked 2026-10-10 16:34 UTC
    Evidence used on this page
    • Page 1: Important safeguards; Cleaning; Cleaning attachments under the tap: Dry operation only. Keep handle dry; rinse detached parts and air-dry before reattachment.
  4. 4.BT3620/40 support-linked user manualPhilips · Official specifications · Source checked 2026-10-10 16:34 UTC
    Evidence used on this page
    • Page 1: Important to know; General description; Charging: Facial hair only; excludes scalp/body hair. Cordless bath/shower and tap-cleaning permitted; USB cable and supply must stay dry. Two guard ranges.

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