Bosch
Bosch GMS 120 Professional Digital Multi-Scanner
$109.48Cheaper
Best Stud Finders · head-to-head
Bosch GMS 120 Professional Digital Multi-Scanner vs Walabot DIY 2 Precision Wall Imaging Stud Finder
A sourced, side-by-side comparison. Bosch GMS 120 Professional Digital Multi-Scanner is cheaper at $109.48. Every spec and price links to its source.
Walabot
Walabot DIY 2 Precision Wall Imaging Stud Finder
$199.95
Which is better: the Bosch GMS 120 Professional Digital Multi-Scanner or Walabot DIY 2 Precision Wall Imaging Stud Finder?
On the specs we track, they're closely matched. The Bosch GMS 120 Professional Digital Multi-Scanner is the cheaper at $109.48.
See Bosch GMS 120 Professional Digital Multi-Scanner on Amazon See Walabot DIY 2 Precision Wall Imaging Stud Finder on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Bosch GMS 120 Professional Digital Multi-Scanner | Walabot DIY 2 Precision Wall Imaging Stud Finder |
|---|---|---|
| US price | $109.48 | $199.95 |
| Brand | Bosch | Walabot |
| Released | — | — |
| Max scan depth (in) | 4.75 | 4 |
| Sensing technology | capacitive/inductive multi-mode with automatic calibration; illuminated status ring (green/orange/red) | RF/radar-based wall imaging (Walabot proprietary sensor array) with smartphone app |
| Detects wood metal live wire | wood studs, ferrous metal to 4.75 in., non-ferrous metal to 3.125 in., live AC wiring to 2 in. | wood studs, metal studs, live and non-live wires, pipes, and movement/pests |
| Sensor array width (in) | — | — |
| Center vs edge find | automatic center finder for detected objects | full 2D image of wall cavity contents (Image Mode and raw-data Expert Mode) rather than single-point center/edge indication |
| Display type | illuminated graphical display | smartphone app display (iOS/Android) via built-in Wi-Fi, Image Mode and Expert Mode heat-map views |
| Calibration method | automatic calibration in each of 3 modes (wood/metal/AC) | not specified by manufacturer beyond standard app pairing/placement instructions |
| Power source | 9V battery (included) | built-in rechargeable battery (USB-C charging) |
Sources — Bosch GMS 120 Professional Digital Multi-Scanner: boschtools.com (verified 2026-08-05). Walabot DIY 2 Precision Wall Imaging Stud Finder: walabot.com (verified 2026-08-05).
What's the difference between the Bosch GMS 120 Professional Digital Multi-Scanner and Walabot DIY 2 Precision Wall Imaging Stud Finder?
Where the two actually differ on the specs we track (7 of 8). Matching specs are omitted.
- Max scan depth (in): Bosch GMS 120 Professional Digital Multi-Scanner 4.75 vs Walabot DIY 2 Precision Wall Imaging Stud Finder 4
- Sensing technology: Bosch GMS 120 Professional Digital Multi-Scanner capacitive/inductive multi-mode with automatic calibration; illuminated status ring (green/orange/red) vs Walabot DIY 2 Precision Wall Imaging Stud Finder RF/radar-based wall imaging (Walabot proprietary sensor array) with smartphone app
- Detects wood metal live wire: Bosch GMS 120 Professional Digital Multi-Scanner wood studs, ferrous metal to 4.75 in., non-ferrous metal to 3.125 in., live AC wiring to 2 in. vs Walabot DIY 2 Precision Wall Imaging Stud Finder wood studs, metal studs, live and non-live wires, pipes, and movement/pests
- Center vs edge find: Bosch GMS 120 Professional Digital Multi-Scanner automatic center finder for detected objects vs Walabot DIY 2 Precision Wall Imaging Stud Finder full 2D image of wall cavity contents (Image Mode and raw-data Expert Mode) rather than single-point center/edge indication
- Display type: Bosch GMS 120 Professional Digital Multi-Scanner illuminated graphical display vs Walabot DIY 2 Precision Wall Imaging Stud Finder smartphone app display (iOS/Android) via built-in Wi-Fi, Image Mode and Expert Mode heat-map views
- Calibration method: Bosch GMS 120 Professional Digital Multi-Scanner automatic calibration in each of 3 modes (wood/metal/AC) vs Walabot DIY 2 Precision Wall Imaging Stud Finder not specified by manufacturer beyond standard app pairing/placement instructions
- Power source: Bosch GMS 120 Professional Digital Multi-Scanner 9V battery (included) vs Walabot DIY 2 Precision Wall Imaging Stud Finder built-in rechargeable battery (USB-C charging)