| Bonded Type Strain Gauges | Unbonded Type Strain Gauges |
| The four wires are attached between the moving frame and fixed frame. Therefore, the wires are unbonded. | All the grid-material of wire mesh is embedded in the epoxy thin papers. Therefore, the wires are bonded. |
| Damage to the wires may take place due to abrupt use, while working. | No any damage to the “Wire Grid Material” during working. |
| Less life. | More life. |
| Cannot be easily applied onto the member under test. | Can be easily applied onto the member under test. |
| Bulky and heavy weight. | Very light weight. |