Some of the most powerful improvements in Cyberpunk 2077 are sandevistans.
You will go from being a street punk nobody to a Night City icon by playing Cyberpunk 2077. V can be like Morgan Blackhand, Adam Smasher, or even David Martinez from Cyberpunk Edgerunner. Installing Cyberware is one of the most important ways to get better, and the Sandevistan is the best. When you turn it on, your senses are turned up to 11, and everything around you seems to move in slow motion.
You can imagine how useful this skill is when bullets and Cyberpsycho blades are flying by your head. You have to look around and have some street cred to get your hands on this powerful gadget. But once you try the fast life, you might not be able to stop.
Zetatech Mk.1

The Zetatech Mk. 1 is made for lower-level heroes, just like the Dynalar Mk. 1. You probably won’t have a build that focuses on critical hits so early in the game, but the Zetatech Mk.1 gives you something to use even if you have low Street Cred. In general, though, the Dynatech Mk.1 is better.
Zetatech Mk.2

This Sandevistan doesn’t have a lot of bells and whistles, but the consistent boost to critical strike rate is a nice bonus. Think of this as a small improvement over the Mk.1.
Zetatech Mk.3

The Zetatech Mk.3 is your Sandevistan if you want a build with a high chance to hit early on and want a Sandevistan that will always last until the end of a fight.
In general, the Zetatech Sandevistans are a good step toward getting the more powerful QianT implants in the future.
Dynalar Mk.1

Here is probably the best and first Sandevistan you’ve seen. The extra damage isn’t much, but the effect lasts for 30 seconds, which is long enough for a few well-placed gunshots to kill a few bad guys.
It’s also important that it’s cheap and easy to get. To get chromed up, just go to Northside and talk to Cassius.
Dynalar Mk.2

The Dynalar Mk2 is better than its predecessor because it does more damage, lasts longer, and slows down time much more. If you want to keep using the Sandevistan, you may need to start thinking about more customized builds based on Reflex at this point.
Dynalar Mk.3

The Dynalar Sandevistan is the most reliable and easy-to-use Sandy so far. It only takes 15 seconds to cool down, which is a very short time. It also gives a great damage bonus, but the fact that it only moves 50% faster doesn’t make it stand out too much from the rest.
Aim for this Sandevistan while you’re still building up your Street Cred for the more powerful Sandys that will be available later.
Dynalar Mk.4

Your old friend Viktor’s clinic in Little China is where you can buy the Dynalar Sandevistan Mk.4. If your build is focused on pure DPS, the Mk.4 Sandevistan is a good pick. For this build, you probably already have a lot of Reflexes, so the minimum won’t slow you down.
Militech “Falcon” Mk.5

The Militech “Falcon” Sandevistan Mk.5, which costs 20 Reflexes, is a late-game Sandy that focuses on attack. You won’t be able to use it very often if it takes 60 seconds to recharge, but if it lasts 18 seconds, you can stay safe through even the longest battle.
QianT “Warp Dancer” Mk.5

This little beauty is the best crit build to hunt with. If you have a high chance to get a critical hit, this Sandevistan could make you a one-hit kill machine. The eight-second triggering time isn’t very long, so this Sandy should only be used for a few quick, well-aimed headshots.
QianT Mk.4

Surprisingly, most people think that the QianT Mk.4 is better than the QianT Mk.5 because its action lasts for 12 seconds and its cooldown is only 15 seconds. With the Legendary-level Heatsink mod and the Epic Nanorelays cyberware, you can increase the time slowdown to 14 seconds with an 11-second pause.
You have the best Sandevistan in Drift Boss if you give it some good damage and critical chance boosts.