ICOM IC-M25 Floating Handheld Marine Radio

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Last updated on September 18, 2022

Icom IC-m25 VHF handheld radio

The ICOM IC-M25 is a slim, lightweight, and water-resistant handheld VHF radio, the upgraded version of the M23 which was released on May 2011. Its equipped with a powerful 1500 mAH battery which provides up to 11 hours of battery life per charge, float N flash functions, aqua quake draining, and an IPX7 waterproof design are some of the many features of this radio.

No more bulky charging base! The ICOM M25 includes a NEW micro USB charging cable connector (smartphone-compatible connectors) which can be easily used with your mobile battery packs. Now you can charge your handheld VHF radio in the same way you charge your phone or tablet.

The M25 handheld VHF radio is designed very intuitively starting from the large controls and well-placed, soft key buttons that make operating extremely easy. Despite being smaller in size compared to other VHF radios, the display is actually 30% larger than its predecessor the ICOM M24 which makes it easy to see all the information on screen.

Available in three colors, the ICOM-25 is a decent looking device that has everything you want from a stylish, well-designed VHF  radio. While the ICOM M25 is a little more expensive than other handheld VHF marine radios, it stands out for having the best value for the money with all its useful extra features.

Icom m25 charging port

Icom M25 charging port

Main Features

Choosing the best VHF handheld radio for your needs requires a little bit of research. What makes the ICOM 25 better than other handheld VHF radios? Learn more about its features below:

  • Slim, Compact and Lightweight Design - The M25 weighs 7.76 ounces and measures 5.28” tall, 2.23” inch wide, and 1.2” thick which means it can fit almost anywhere. It has a slim body shape making it much more comfortable to hold and carry in your pocket.
  • Large Controls and Display - Very easy to use controls. A significantly larger display than its predecessors means no more squinting when reading the display information.
  • Micro-USB Charger - includes a new micro USB charging cable connector which can be used with your mobile battery packs or other small electronics. It can be charged to an AC adapter for around 3 hours.
  • Loud 550mW Audio - Despite its small size, the ICOM M25’s speakers are powerful enough to hear transmissions over the wind, choppy seas, or engine noises. You can also do quick volume adjustments by simply holding the VOL/SQL buttons or pushing the ▲ or ▼ button.
  • Float N’ Flash - A brilliant feature which allows your device to float and flash a red light when dropped in water for easy retrieval, especially at night. It also sounds an audible alarm to point you in the right direction.
  • Aqua Quake Draining Function - Once retrieved from the water, the device emits low-frequency sound waves which shakes off water from the speakers so that transmissions are smooth and clear, preserving the sound quality.
  • IPX7 Waterproofing - The M25 will be able to withstand immersion in water up to 1 meter for up to 30 minutes without damage.
  • Multi-Tasker- The ICOM-M25 includes an instant access button to channel 16, programmable call channel, dual/tri-watch functions which allow you to monitor distress channels while still using other channels.
  • Rechargeable 1500 mAH Li-ion battery - Powerful battery that allows 11 hours of operation with battery life icon indications while charging and fully charged.

Additional Features

  •  Front Panel Buttons for Quick Operations
  • Weather Channel w/ Weather Alert
  • Instant access to Channel 16
  • Favorite Channel Function
  • Auto Scan
  • Large LCD with Auto Backlighting

What’s included in the Box?

  • USB charger (Icom #BC- 217SA)
  • Belt Clip (Icom #MB - 133)
  • Antenna (Icom #FA - SC59V)
  • Battery Pack (#BP-282)
  • Hand Strap


  • Frequency Band: VHF
  • Type: Handheld VHF radio
  • Country/Region of Manufacture: Japan
  • Item Weight: 7.8 ounces
  • Item Model Number: IC-M25 01
  • Dimensions: W 2.2” x H 5.3” x D 1.2”
  • Features: Floating, Submersible, Radio, Waterproof
  • Display Type: Segmented LCD
  • Material: Aluminum
  • Scanning Modes: All Scan
  • Transmit Power: 5/1 Watt
  • Usable channels: INT, USA, CAN, WX channels
  • Antenna Impedance: 50Ω
  • Type of emission: 16K0G3E (FM)
  • Operating temperature range : -20°C to +60°C; -4°F to +140°F
  • Battery life: 11 hours
  • Batteries: 1 Lithium ion batteries required. (included)
  • Available Colors: Blue, Pearl White, Metallic Grey Accents
  • Warranty Details: Three Years Waterproof


  • Output power: (Hi/Mid/Low)       5W (High),1W (Low)
  • Max. frequency deviation: ±5.0kHz
  • Frequency stability: ±10ppm
  • Spurious emissions: -68dBc typical
  • Adjacent channel power: 70dB
  • Audio harmonic distortion: 10% (at 60% dev.)
  • Residual modulation: 40dB


  • Sensitivity (at 12dB SINAD): 0.25µV typical
  • Squelch sensitivity: 0.25µV typ. (at threshold)
  • Adjacent Channel Selectivity: 70dB typical
  • Spurious response: 70dB typical
  • Intermodulation Rejection: 70dB typical
  • Hum and noise ratio: 40dB typical
  • Audio output power : (at 10% distortion, 8 Ω)    
  • Internal SP: 550mW typ. (12Ω load)
  • External SP: 300mW typ. (4Ω load

Final Thoughts:

The ICOM M25 is another high quality handheld VHF radio from ICOM. Currently, the slimmest floating handheld marine radio, it packs many features and delivers uncompromised performance that raises the bar in the marine electronics industry. A popular favorite among consumers, the ICOM M25’s easy to use, well-placed buttons and smart interface makes the device one of the best handheld marine radios today.

About the author  Robert Finn

Robert has over 20 years of experience boating and selling boat equipment. His passion for the latest and greatest gear helps our clients find what they need. His favorite boating place is the Florida Keys.