Garrett ACE 400Complete Review & Field Test 2026
The ACE 400 hits the sweet spot in Garrett's lineup with a 0-99 Digital Target ID scale and adjustable frequency that helps reduce interference. Iron Audio lets you hear masked iron targets, preventing false digs. The included 8.5x11" DD coil covers ground efficiently while the USA-made build quality ensures years of reliable use.
Key Features:
- Digital Target ID with 0-99 scale
- Iron Audio for identifying iron targets
- Adjustable frequency (8.25 kHz ± 4 kHz)
- 8.5" x 11" DD PROformance searchcoil
- Electronic pinpointing
Price may vary. Last updated: Dec 28, 2025
Expert Overview
The Garrett ACE 400 represents Garrett's commitment to delivering reliable metal detection technology. Operating at 8.25 kHz (adjustable), this mid-range detector has earned its 4.6-star rating from over 4,392 verified users—a testament to its real-world performance.
Frequency
10 KHz
Weight
5.48 pounds
Battery
5 Hours
IP Rating
IP54
Coil
8.5" x 11" DD PROformance
Dimensions
15L x 6W x 22H
Technical Specifications
In-Depth Field Performance
Detection Depth & Coverage
In field testing, the Garrett ACE 400 demonstrates consistent target acquisition across various soil types. The 8.5" x 11" DD PROformance provides excellent ground coverage while maintaining sensitivity to smaller targets. With a maximum detection depth of 8-10" (coin), 12"+ (larger), it performs admirably for beginners and coins hunting. Recovery speed between targets is adequate for most hunting conditions, making it suitable for recreational hunting.
Target ID & Discrimination
Target identification on the Garrett ACE 400 uses 8 segments, adjustable notch to differentiate between valuable finds and junk. The 5 (Jewelry, Coins, Relics, Custom, Zero-Disc) search modes provide flexibility for different hunting scenarios. The Iron Audio feature lets you hear masked iron targets—a game-changer for relic hunters working in nail-infested sites. The Built-in speaker, 1/4" headphone jack delivers clear tones even in noisy outdoor environments.
Technology & Ground Handling
Garrett equipped the Garrett ACE 400 with 8.25 kHz (adjustable) technology, ideal for coins, jewelry, and common relics. The Preset (automatic) system automatically adapts to changing ground conditions. The submersible coil allows hunting in wet grass, shallow streams, and rainy conditions.
Build Quality & Ergonomics
Weighing 2.9 lbs (1.3 kg), the Garrett ACE 400 is lightweight enough for extended hunting sessions without fatigue. The 42" to 51" adjustable accommodates users of different heights. Build quality is excellent—made in the USA with quality materials. 15-20 hours means less worry about power during full-day hunts.
Pros & Cons
- 8.25 kHz frequency excellent for coins and jewelry
- Iron Audio lets you hear iron discrimination
- Digital Target ID with 0-99 scale for accurate identification
- Made in USA with excellent build quality
- Adjustable frequency helps in trashy sites
- No wireless headphones included
- Preset ground balance may struggle in highly mineralized soil
- Learning curve to master Iron Audio feature
Intermediate hobbyists looking for a feature-rich detector with accurate target ID
Gold prospecting or heavily mineralized beach hunting
vs Competition
| Feature | Garrett ACE 400 | Minelab X-Terra Pro | Nokta Simplex+ |
|---|---|---|---|
| Price | $357.95 | $283.62 | $299.00 |
| Rating | 4.6 | 4.5 | 4.5 |
| Frequency | 8.25 kHz (adjustable) | Multi-IQ+ (4, 8, 15 kHz + multi) | 12 kHz |
| Weight | 2.9 lbs (1.3 kg) | 2.47 lbs (1.12 kg) | 2.87 lbs (1.3 kg) |
| Waterproof | Coil only (submersible) | IP68 to 5 meters (16 ft) | IP68 to 3 meters (10 ft) |
Frequently Asked Questions
In optimal low-mineralized soil, the Garrett ACE 400 can detect a quarter-sized coin at 8-10" (coin), 12"+ (larger). Larger objects like relics and caches can be detected at greater depths. In highly mineralized ground, expect 15-20% reduction in depth. Actual results depend on soil conditions, target size, and discrimination settings.
Yes, the Garrett ACE 400 is excellent for beginners. It offers intuitive controls, preset search modes, and reliable target identification. The learning curve is manageable, and most new users are finding targets within their first hour of use.
The Garrett ACE 400 has a submersible coil (Coil only (submersible)), so you can hunt wet sand and shallow water, but the control box should stay dry. For deep water hunting, consider a fully waterproof model.
The standard Garrett ACE 400 package includes: the detector unit, 8.5" x 11" DD PROformance, coil cover, headphones, requires AA batteries (sometimes included), and user manual. Some retailers offer accessory bundles with additional coils, carrying bags, and digging tools.
Yes, Garrett provides a 2 years manufacturer warranty for the Garrett ACE 400 in the USA through authorized dealers. As a USA-made product, service and parts are readily available. Register your detector after purchase for full warranty coverage.
The Garrett ACE 400 at $357.95 competes with mid-range options like the Minelab Vanquish and Nokta Legend. Key advantages include 8.25 khz frequency excellent for coins and jewelry and iron audio lets you hear iron discrimination. However, note that no wireless headphones included. See our comparison guides for detailed head-to-head analysis.
Final Verdict
Based on 4,392 reviews
The Garrett ACE 400 is an excellent choice for intermediate hobbyists looking for a feature-rich detector with accurate target id. With a proven track record of 4.6-star ratings from 4,392 users, it delivers on its promises in the field.
At $357.95 (currently discounted from $399.95), the Garrett ACE 400 competes in the mid-range segment. For intermediate hobbyists, it offers exceptional value with features typically found in more expensive units. The 2 years warranty provides peace of mind for your purchase.
Bottom Line: The Garrett ACE 400 at $357.95 hits the sweet spot between features and value. Perfect for hobbyists ready to step up their game.
Price may vary. Last updated: Dec 28, 2025
Related Categories
Price may vary. Last updated: Dec 28, 2025
More from Garrett
View all
Garrett ACE 300
Garrett's ACE 300 bridges the gap between toy detectors and serious machines with 0-99 Digital Target ID for accurate identification. Five preset search modes eliminate guesswork for new hunters, while the 7x10" DD coil provides solid depth. Made in USA with Garrett's proven reliability at an accessible price point.
Price may vary
Garrett AT Pro
The AT Pro set the standard for waterproof VLF detectors with 10-foot submersion rating and 15 kHz frequency optimized for coins and jewelry. Pro Audio modes provide nuanced target information that experienced hunters appreciate. Manual ground balance handles beach mineralization that trips up preset-only machines.
Price may vary
Garrett ACE 250
The Garrett ACE 250 delivers proven performance for beginners and hobbyists at an accessible price point. Its 12-segment target ID and 5 search modes make coin, jewelry, and relic hunting straightforward. The lightweight design and simple controls let you focus on finding treasure rather than learning complex settings.
Price may vary
Compare with Similar Detectors
Minelab X-Terra Pro
The X-Terra Pro delivers full IP68 waterproofing with Multi-IQ+ at a mid-range price. Pro-Switch audio lets you toggle between modes without menu diving, and both single and multi-frequency options give flexibility for different targets. Lightweight at 2.47 lbs, it swings easy during long sessions.
Price may vary
Nokta Simplex+
The Simplex+ redefined value by offering IP68 waterproofing to 3 meters at a budget price point. Built-in rechargeable battery eliminates ongoing costs, and wireless headphone support keeps you cord-free. Nokta's free firmware updates add features over time—a rarity at this price.
Price may vary