SportDOG FieldTrainer® 425X

21 Review(s) (4.5/5)

$179.95
List: $189.95
Choose Options and Buy


The SportDOG 425X Field Trainer is a good choice for the everyday pet or close-in hunting companion. An affordable training collar system ideal for most any type of application.

The compact FieldTrainer 425X is ideal for training in the yard, field, or for hunting with dogs that hunt close.

Our friends at SportDOG have excelled once again at making their standard even better. Introducing the X-Series: new technology built on the same solid platform you know and trust. The FieldTrainer 425X is the first the new series. The biggest difference being that this training collar now offers 21 levels of stimulation at your fingertips.


If you’re familiar with the standard 425 Field Trainer, you’ll remember the intensity dial from 1-7. The 425X provides the same dial, but now gives you Low, Medium, and High for each number on the dial. This allows you so much more control and a greater degree of precision to get the exact response from your dog. Not too hard, not too soft, but just right. As with its predecessor, the 425X still offers Vibrate and Tone, an extremely useful feature.

Lightweight, compact, and dependable.

The FieldTrainer 425X is not necessarily an entry level model, since it contains all the features of any professional e-collar, however its ease of use (and price tag) is perfect for anyone new to e-collar training. The 425X is also the smaller of the X-Series products, which provides a compact and lightweight option suitable for small dogs (8-10lbs) or for young dogs just starting out.

The 500-yard range is ideal for close working dogs, mainly retrievers, and for anyone who needs that “around the house” training or heading out to the park.

Add up to 3 dogs to the remote system, and instantly switch stimulation modes.

The FieldTrainer 425X can be used up to a 3-dog system, and is “backwards compatible” with the older 425 collar receivers, the SDR-AF model, meaning the original 425 collars can deliver the same 21 levels of stimulation that the new 425X offers.

The SDR-AF is also the Add-A-Dog collar model offered when ordering a 2 or 3-dog unit. You do lose a few of the transmitter’s extra features when adding additional collars (see the operating guide for details). The newer SDR-AXF collar receiver will be available from SportDOG later this year, which should include a slightly smaller design and an updated color and finish to match the 425X transmitter.

Switch instantly between stimulation, vibration, and tone to fit the correction or communication to your dog’s temperament and learning ability. Both the Transmitter and Receiver are waterproof and submersible. It comes as a 1-dog system, but can be expanded to control up to 3 dogs by adding SportDOG Brand Add-A-Dog™ collars.

The comfortable, ergonomic transmitter weighs only 4.0 ounces, making this unit a pleasure to handle. This 425 Model is an upgraded replacement for the SportDOG Field Trainer 400.

Download Manual

- SportDOG FieldTrainer® 425X User Manual

Great features of the SportDOG FieldTrainer 425X include:
  • NEW- 21 levels of fine-tuned stimulation.
  • Vibrate and Tone controls.
  • 500 yards of “line of sight” range. (Need more range? Check out the SportHunter 825X with ½ mile range.)
  • Waterproof and submersible up to 25 feet utilizing DryTek technology.
  • Customizable modes, if desired, re-arranging features or options to really personalize the unit. (See the operator’s guide.)
  • Fast charging, long lasting batteries.
  • Also available in Realtree MAX 5 Camo, and a higher stimulation version, the FieldTrainer 425XS, for stubborn or larger “high energy” dogs.
  • Compact, lightweight, and easy to use so you can concentrate on your dog, not the training system.
  • In the Box
  • Remote Transmitter
  • Collar Receiver on 3/4" Collar Strap
  • Charger Adapter
  • Standard Contact Points
  • Long Contact Points
  • Lanyard
  • Test Light Tool
  • Operating Guide
  • Basic Training Manual





  • Additional Information
    BrandSportDOG
    Range1/4 Mile
    ExpandableUp to 3 Dogs
    WaterproofWaterproof
    Collar Modes:Continuous, Momentary, Vibration, Tone
    Battery Charge Time2 Hours
    Battery TypeRechargeable Li-Ion
    Buyer's Guide Quote Text"Best for the family dog."

    Customer Reviews 10 item(s)

    • Overall
      Excellent
      This collar works great on our year and a half old Golden Retriever. We’ve tried a few other collars that haven’t been consistent or worked overtime. Really happy that this collar has multiple static levels and that you don’t have to take this collar off when we go to dog beach since our dog loves to swim. We love having him off leash and knowing this collar works so well gives us peace of mind that we have full control over him even off leash. Highly recommend this collar, it has helped tremendously.
      Review by Jessica O’Brien - (Posted on 1/12/2024)
    • Overall
      Confusing paperwork
      I am usually pretty adept at setting up anything technical but the documentation on this was so confusing. I finally had to call in and she was so very helpful and got it set up so quickly!! I'm not crazy about the level of vibration because I have deaf dogs and I need stronger vibration but if I have to, I'll switch over to a mild shock if needed. I needed submersible since I have spent a small fortune in collars that say they are waterproof but they are not. So that's the primary reason I got this one since my one dog loves to swim. I also wanted one remote for the 3 dogs to call back as needed since I can't just yell out to them. So for those things, it's an awesome system.
      Review by Lynne Wiesman - (Posted on 10/19/2021)
    • Overall
      Great Product
      Training manual was very helpful. High quality overall, wouldn't buy any other collar.
      Review by Austin Samsa - (Posted on 7/7/2020)
    • Overall
      Great Product
      Have used other training collars in the past that were not very reliable. Spent a little more money this time and purchased this collar and it was well worth it! My Irish Setter responds very well and so far have only needed to use the tone option. We use it mostly for keeping her within close proximity while outside on our lake property.
      Review by Lora Daniels - (Posted on 4/29/2019)
    • Overall
      awesome product
      We had trouble with our Lab running off in the woods and were afraid someone would steal him or shoot him. We don't worry about that anymore. We have only had to actually shock him twice the rest of the time we can call him and use the tone if he doesn't respond. He will turn and come right back to us. So glad we bought this product.
      Review by Angela Gillis - (Posted on 3/16/2019)
    • Overall
      So far so good
      The quality seems very nice and I've only used it a few times, but so far so good. The one thing I am disappointed about (but couldn't find in a higher-end trainer) is that the Vibrate and Shock options share the same buttons. With our training we use the beep and vibrate as an increasing warning system, which has worked well (we've had a couple cheaper trainers in the past with separate buttons for all three options that worked fantastically, but the quality was such of those trainers that they didn't last long). The problem with this layout is that I can't quickly go from vibrate to shock when in an urgent situation (i.e. when our dog gets too excited and is about to knock the baby stroller over) so the shock option is almost useless to me most of the time. With the separate button setup I've had in the past, it's been super easy to get his attention back even after he gets worked up because I didn't have to look down at the remote or make adjustments that took time.
      Review by Megan Ballweber - (Posted on 6/27/2018)
    • Overall
      Great
      Works great in the field and in the house. Charges quickly and holds charge for multiple uses. Definitely worth the money!
      Review by Josh Vaughn - (Posted on 5/6/2018)
    • Overall
      works well
      I have only used the collar 4 times so far, and it seems to work as advertised. The hand book and video are excellent, they explained things I had not thought about.
      Review by Rob Cheney - (Posted on 4/17/2018)
    • Overall
      Excellent
      This is a great product for me. My labradoodle responds to the beep and so far I only had to use the vibration twice.he is walking right by me without searching the bushes for rabbits so far so goof!
      Review by Judy Nydell - (Posted on 3/5/2018)
    • Overall
      Works great. Charger sucks
      Plugs to charge it are cheaply made and difficult to charge, sucks. Should be a droid plug and done.
      Everything else is great. Wonderful controls.
      Review by Pamela Seina - (Posted on 1/17/2018)