Garrett ACE 300 vs Garrett ACE 400 – Which One Should You Buy?

The Garrett ACE series is one of the most widely used beginner metal detectors among hobbyists who enjoy coin hunting, relic hunting, and jewelry detecting. Two of the most frequently compared models are the Garrett ACE 300 and the Garrett ACE 400. Both detectors are VLF (Very Low Frequency) metal detectors designed to locate coins, rings, and historical relics using Garrett’s digital target ID, discrimination system, and waterproof search coil technology.

These detectors are commonly used in locations such as parks, school grounds, beaches, and old homestead sites, where target identification and ground coverage play an important role in successful metal detecting.

So which detector is the better choice?

In this guide, we’ll compare the Garrett ACE 300 vs Garrett ACE 400, covering their search coils, operating frequency, detection depth, and metal detecting performance to help you decide which detector fits your treasure hunting style.

Garrett ACE 300 vs Garrett ACE 400: Quick Comparison

Before diving into the details, here’s a quick side-by-side overview of the two detectors.

Both detectors are designed for coin shooting, relic hunting, and general metal detecting, but the ACE 400 offers additional features that improve performance in more challenging environments.

Garrett ACE 300 Overview

One of the greatest beginner metal detectors on the market right now is the Garrett ACE 300. It is easy enough for new users to pick up fast and provides outstanding performance for the price.

The ACE 300 is part of the newer ACE series that replaced earlier models like the ACE 250, offering enhanced sensitivity, clearer aural feedback, and better target identification.

Important Highlights

• An effective operating frequency for coins, relics, and common metals is 8 kHz.

• A 7 x 10-inch concentric PROformance search coil that offers adequate coverage for yards and parks

• A digital target identification system that shows the likely type of metal

• Five search options for various detection settings

• Comfortable and lightweight for extended hunting excursions

• The ACE 300 prioritizes dependability and simplicity. It is a great option for those who are new to metal detecting because of its simple controls.

Ideal For

• The Garrett ACE 300 is an excellent option for:

• Users of detectors for the first time

• Weekend treasure seekers on a casual basis

• Coin hunting in schools and parks

• Identifying in low-trash situations

The ACE 300 provides a well-balanced combination of price, dependable detection performance, and ease of use for someone just starting in the sport.

Garrett ACE 400 Overview

The more sophisticated model in the ACE series is the Garrett ACE 400. It still caters to novice and intermediate users, but it has a number of improvements that boost functionality and efficiency.

Garrett's Iron Audio technology, a larger DD search coil, and a higher operating frequency are the main enhancements.

These improvements enable the ACE 400 to function more effectively in places where iron objects or rubbish are prevalent.

Important Highlights

• Operating frequency of 10 kHz for increased sensitivity

• 8.5 x 11-inch DD search coil for better coverage and depth

• To identify iron targets, use the Iron Audio function.

• Better target separation in areas with rubbish

• Includes accessories and Garrett headphones.

The ACE 400 is frequently regarded as the superior long-term choice for detectorists who intend to keep developing their hobby because of these improvements.

Ideal For

• The ACE 400 is ideal for: Novice detectors seeking more sophisticated features

• Users identifying in areas with a lot of rubbish

• Hobbyists seeking greater coverage and depth

• Detectorists who intend to upgrade from entry-level devices

The ACE 400 is simple to use and offers greater control and versatility.

Major Differences Between Garrett ACE 300 and ACE 400

Although the two detectors share many similarities, a few key features separate them.

Understanding these differences will help you decide which machine fits your detecting style.

Iron Audio Technology

One of the biggest advantages of the ACE 400 is Iron Audio.

This feature allows the detector to identify iron objects that might otherwise appear as valuable targets.

Why this matters:

• Many detecting areas contain nails, bottle caps, and iron trash

• Iron Audio helps identify these items before digging

• It reduces wasted time digging unwanted targets
  
  

The ACE 300 does not include Iron Audio, meaning users may dig more iron objects.

Search Coil Size

Both ground coverage and detection depth are significantly influenced by the search coil.

ACE 300 coil

• 7" x 10" concentric coil

• Excellent target separation and accuracy

• Perfect for parks and smaller spaces

ACE 400 coil

• 8.5" × 11" double-D 

• With each swing, more ground is covered.

• Works better on soil that has been mineralized.

In challenging soil conditions, the ACE 400's DD coil frequently offers deeper and more reliable performance.

Operating Frequency

The way a metal detector reacts to different kinds of objects depends on its operating frequency.

• ACE 300: 8 kHz

• ACE 400: 10 kHz

In general, thin metals and small targets are more susceptible to higher frequencies.

Although both devices are capable of accurately detecting coins and artifacts, the ACE 400's marginally higher frequency may enhance sensitivity in some circumstances.

Target Identification

Garrett's digital target ID system, which shows a number that helps identify the kind of metal found, is a feature of both detectors.

This technique assists users in identifying potential targets, such as 

• Iron

• Foil

• Coins.

• Jewelry

The extra Iron Audio function on the ACE 400 helps confirm iron items more precisely.

Performance Comparison in the Field

What is the actual performance of these detectors on actual hunts?

Let's contrast them in a few typical detection instances.

Depth of Performance

• ACE 300: reliable coin and relic detection depth

• ACE 400: a little deeper because of the bigger coil

Although there isn't much of a difference, seasoned users frequently observe that the ACE 400 can hit somewhat deeper targets.

Trashy Spots

• ACE 300: additional excavation is needed in iron-rich regions

• ACE 400: Iron Audio helps avoid unwanted targets

This option can save a lot of time if you intend to hunt in historic locations or historical parks.

Ease of Use

• ACE 300's controls are a little easier to use.

• ACE 400: additional features, but still suitable for beginners

Even for novice enthusiasts, both detectors continue to be simple to use.

Which Metal Detector Should Beginners Choose?

For novices, both detectors are great choices, but which one is best for you will depend on your objectives.

Select the Garrett ACE 300 if

• You're looking for an inexpensive novice detector.

• This is your first attempt at the hobby.

• The majority of the time, you find it in tidy places like yards and parks.

Strong performance is provided by the ACE 300 without being too demanding for novice users.

Select the Garrett ACE 400 if

• You desire more sophisticated features.

• You anticipate hunting in places with a lot of iron or rubbish.

• As your abilities advance, you desire a detector that will endure longer.

For novice detectorists, the ACE 400 is frequently regarded as the superior long-term investment.

Pros and Cons

Garrett ACE 300

Pros

• Affordable entry price

• Lightweight and easy to use

• Reliable Garrett performance

• Great for beginner coin hunting

Cons

• Smaller search coil

• No Iron Audio feature

• Slightly less depth than the ACE 400

Garrett ACE 400

Pros

• Larger DD search coil

• Iron Audio technology

• Improved target identification

• Better performance in mineralized soil

Cons

• Higher price than the ACE 300

• Slightly heavier detector

Frequently Asked Questions

Is the Garrett ACE 400 worth the upgrade?

For many detectorists, yes. The ACE 400 offers a larger coil, Iron Audio, and slightly better performance in challenging ground conditions.

Which detector is easier for beginners?

Both machines are beginner-friendly, but the ACE 300 is slightly simpler because it has fewer advanced features.

Can the ACE 300 and ACE 400 be used on the beach?

Both detectors can be used on dry sand beaches. However, like most VLF detectors, they may struggle in wet saltwater sand.

What metals can these detectors find?

Both detectors can detect:

• coins
  

• jewelry
  

• relics
  

• gold rings
  

• silver items
  

• other conductive metals

Final Verdict

The Garrett ACE 300 and ACE 400 are both excellent metal detectors, especially for beginners entering the hobby.

The ACE 300 is a fantastic entry-level detector that delivers reliable performance at an affordable price. It’s perfect for casual treasure hunters who want a simple and dependable machine. The ACE 400, however, adds several upgrades that make it more versatile. With its larger coil, Iron Audio feature, and improved sensitivity, it performs better in more challenging environments.

If you’re choosing between the two, the decision often comes down to budget and long-term plans.

• Choose the ACE 300 if you want an affordable beginner detector.

• Choose the ACE 400 if you want more power, better features, and room to grow in the hobby.

Both detectors represent the quality and reliability that Garrett has built its reputation on, making either one a solid choice for your next treasure hunting adventure.