| Viridian | Grip Style Laser | Guide Rod Laser | Unimax Green ** | |
| Laser Wavelength | 532nM, (Green) | 633nM, (Red) | 635nM, (Red) | 532nM, (Green) |
| Daytime Visible | Yes | No | No | Yes |
| Modes of Operation | 1 Constant mode 3 Pulsing modes |
Constant Only | Pulsing Only | Pulsing Only |
| Windage/Elevation | Fully W/E adjustable | Fully W/E adjustable | Not adjustable | Fully W/E adjustable |
| Laser Position relative to barrel |
Directly below barrel | Below & to the side of barrel |
Directly below barrel | Directly below barrel |
| Installation | Slide onto accessory rail |
Installation Needed | Installation Needed | 3 pieces assembled onto rail |
| Removal | Quick detach system | NA | NA | Break down into 3 pieces |
| Holstering | Need specific holster | Fits any holster | Fits any holster | Need specific holster |
| Battery Type/Cost* | CR2 3 Volt Lithium ($5.99) |
2 - CR2032 Coin Style ($3.99 X 2 = $7.98) |
1 - 357 Silver Oxide Alkaline ($3.99) |
2 - 1/3N Lithium ($3.50 X 2 = $6.99) |
| Battery Life | 4 Hours Constant 7 Hours Pulsing |
4 hours of on-time | 1-3 hours continuous use |
1 hour |
| Battery Cost per hour of use |
$1.50/hr Constant $0.86/hr Pulsing |
$1.99/hr | $2/hr | $6.99/hr |
| Laser MSRP | $199 to $299 ($299 for most) |
$209 to $359 ($329 for most) |
$339 to $399 ($399 for most) |
$399 |
*Average Retail Price - CR2's available on our website for less than half retail price.
**Unimax is a registered Trademark of Lasermax, Inc.
Items in green indicate best in category