Garrett ACE 400 Metal Detector vs Garrett AT Pro All-Terrain Metal Detector
Head-to-head spec comparison to help you pick the right detector for your needs.
Garrett
$350
Garrett
$550
Spec-by-Spec Comparison
| Spec | Garrett ACE 400 Metal Detector | Garrett AT Pro All-Terrain Metal Detector |
|---|---|---|
| Technology | VLF | VLF |
| Frequencies | 10 kHz (adjustable) | 15 kHz |
| Max Depth | 8 " | 10 " |
| Weight | 2.86 lbs | 3.03 lbs |
| Waterproof | Coil only (control box not waterproof) | IP68 to 3m (10 ft) |
| Battery Life | 20 hrs | 25 hrs |
| Ground Balance | Preset (not adjustable) | Auto / Manual |
| Wireless Audio | No | No |
| Backlit Display | No | Yes |
| Target ID Segments | 20 | 99 |
| Stock Coil | 8.5" x 11" DD | 8.5" x 11" DD |
| Warranty | 2 years | 2 years |
| Price | $350 | $550 |
| Rating | 7.2/10 | 7.8/10 |
| Check Price on Amazon | Check Price on Amazon |
Pros & Cons
Garrett ACE 400 Metal Detector
Pros
- Made in the USA with Garrett's reputation behind it
- Adjustable frequency helps minimize interference
- Iron Audio feature identifies iron junk without digging
- 8.5" x 11" DD coil provides good depth and target separation
- Digital target ID with clear segment display
Cons
- Not waterproof — coil is submersible but control box is not
- Single frequency VLF — outdone by Nokta Simplex+ at a lower price
- Runs on AA batteries instead of rechargeable
Garrett AT Pro All-Terrain Metal Detector
Pros
- Made in the USA with legendary Garrett reliability
- Waterproof to 10 feet — true all-terrain capability
- Proportional audio and iron audio for precise target ID
- Proven track record with decades of field-tested performance
- Massive aftermarket community with coils, covers, and guides
Cons
- Single-frequency VLF technology — outclassed by multi-frequency at this price
- Digital target ID has only 99 segments with less precision than newer models
- Heavier and less ergonomic than modern competitors
Our Verdicts
Garrett ACE 400 Metal Detector
The Garrett ACE 400 is a solid entry-level detector backed by a legendary brand. However, the non-waterproof design and AA batteries feel dated in 2026. The Nokta Simplex+ offers more features for less money — but the ACE 400 remains a fine choice if you prefer Garrett's ecosystem and USA-made quality.
Garrett AT Pro All-Terrain Metal Detector
The Garrett AT Pro is the old guard — a battle-tested all-terrain detector with a loyal following. While newer multi-frequency machines outperform it on paper, the AT Pro's reliability, waterproofing, and massive community support still make it a solid mid-range choice. Best for hunters who value proven simplicity.