Retevis RM21 5W Floating Marine Radio
IP67 VHF Radio Marine Handheld, One-Press AI NRC Noise Reduction, 1800mAh, Falling Water Flash Alarm, NOAA…
Price as of 2026-06-17. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Those who want a top-rated option — in the top 15% of marine electronics by rating
- •Pyle 6.5 Inch Dual Marine Speakers — 57% cheaper at $30 (Score A)
📊 Based on data analysis of 184 products in this category.
Mubboo Score: B
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other marine electronics
Computed from live Amazon rating, review count, and price across 184 marine electronics · last refreshed 2026-06-17.
How It Compares
This Product Retevis RM21 5W Floating Marine Radio | Most Popular Garmin 010-01550-00 Striker 4 | Best Rated Uniden UM385BK 25 Watt Fixed Mount Marine VHF Radio | Best Value Pyle 6.5 Inch Dual Marine Speakers | |
|---|---|---|---|---|
| Price | $69.99 | $130.99 | $107.99 | $30.25 |
| Rating | 4.6/5 | 4.6/5 | 4.6/5 | 4.4/5 |
| Reviews | 150 | 9,273 | 2,689 | 3,494 |
| Mubboo Score | B | A- | A- | A |
What People Say
Synthesized from 40 reviews · 100% verified purchases.
While these budget marine electronics offer great value, be aware that some units may arrive dead or have flimsy construction; test promptly and handle with care. For speakers, expect sound distortion at high volumes and consider upgrading if you need loud, clear audio.
- Excellent value for money
- Easy installation and setup
- Good sound quality
- Feature-rich with useful functions
- Reliable performance
- Build quality and durability issues
- Sound distortion at high volume
- Inaccurate performance and battery issues
Related Video Reviews
About Retevis
- 8 products in our database
- Average rating: 4.5/5 across all products
- Price range: $50.99 – $259.99
- Categories: marine-electronics, Walkie Talkies
Other marine electronics
Bottom Line
Retevis RM21 5W Floating Marine Radio earns Mubboo Score B. Priced at $70 — a mid-range option, below the category average of $175. Rated 4.6/5 from 150+ reviews. Strong buy if: those who want a top-rated option.
Frequently Asked Questions
Is the Retevis RM21 5W Floating Marine Radio worth buying in 2026?
It earns a Mubboo Score of B, with a 4.6/5 rating from 150 reviews — better than 85% of marine electronics we track.
How much does the Retevis RM21 5W Floating Marine Radio cost?
It is currently $69.99 — mid-tier pricing for marine electronics.
How does the RM21 5W Floating Marine Radio compare to other marine electronics?
The category's most-reviewed alternative is the Garmin 010-01550-00 Striker 4 (4.6/5, 9,273 reviews, $130.99). The RM21 5W Floating Marine Radio carries a Mubboo Score of B vs A-.
Sources & References
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-17) and may change.