Vortex Strikefire II vs. Sig Sauer Romeo 5 – A detailed comparison


Both the Vortex Strikefire II and the Sig Sauer Romeo 5 are considerably small riflescopes that are ideal for the average recreational shooter. They have a number of similarities, but their differences are what piqued our interest.

Whenever we are starting out on a new hobby, we often times look for the best equipment and accessories. Having been around rifles and scopes a good chunk of my life, I can tell you for certain that a small variation between scopes can make a world of difference. The Vortex Strike II and Sig Sauer Romeo 5 are two devices that are made for mid-range and long range shooting. They may not particularly be fully professional grade, but they are backed by good quality construction and overall specs. Below is a brief breakdown of their differences.

What are the differences between the Vortex Strike II and the Sig Sauer Romeo 5?

Vortex Strikefire II
Sig Sauer Romeo 5
5.6 inches
3.03 inches
Mounting Type
Lower 1/3 co-witness Cantilever
Multi-height mounting
Dot Color
Bright Red
Bright red
Battery Life
Up to 80,000 hours
Up to 40,000 hours

Vortex Strikefire II vs. Sig Sauer Romeo 5 – How do they compare?

Optic Features and Characteristics

When it comes to optic capabilities, the Vortex Strikefire II sets itself apart as a high grade device ideal for long range shooting. For a lens, it boasts a 30mm diameter glass lens that has excellent clarity both in the day and in the night. To make certain that you do not suffer image obstruction during target acquisition, this device is made parallax free. In addition, it offers unlimited eye relief, making certain that no matter the position of the scope on the rifle, you still maintain precise vision on your target.

On the other hand, the Sig Saur Romeo 5 presents a 20mm diameter glass lens, but it is not one to be belittled. It offers a good amount of clarity and is ideal for medium range shooting. Just like its counterpart, this scope is a parallax free device to make certain that you do not experience image obstruction. With unlimited eye relief, you will be in a position to acquire your target with ease even during sudden turns.

Since the Vortex Strikefire II has a better and clearer objective lens, it stands out as the better scope when compared to the Sig Sauer Romeo 5.  

Overall Performance

As earlier mentioned, the Vortex Strikefire II is a riflescope that makes an ideal device for mid-range to long range shooting. For this reason, it comes with a 4 MOA red dot size. Its dot has a bright red color that makes acquiring your target an easy task. I addition to the bright red dot, you will gain access to 10 brightness adjustment levels, and two of these are compatible with night vision, making certain that your vision is clear during the day and in the night.

Comparably, the Sig Sauer Romeo 5 presents a smaller red dot size, coming in at 2 MOA. With this dot size, this scope feels more at home in mid-range shooting exercises. For brightness settings, this riflescope presents up to 10 adjustment levels which ensure you enjoy good clarity. One of this tool’s most outstanding features is its motion sensitivity. When it has gone 10 minutes without being used, it automatically goes off. It comes with MOTAC (Motion Activate) which turns the scope back one when it detects the slightest motion.

Even though the Sig Sauer Romeo 5 comes with MOTAC, the Vortex Strikefire II outdoes it where visual performance is concerned, making the latter device a better scope.  


When it comes to construction, the Vortex Spitfire II is made to be a hardy device, and this is why it is made using aircraft grade aluminum. Each one is pressure tested to make certain that it can withstand a substantial amount of pressure and heavy impact. In addition, it is able to sustain the effect or recoil with ease. To make it an all-weather device, it is fitted with O-rings that are ideal for sealing off all compartments to make sure that no water or dust goes in. it is also nitrogen-flushed to keep it from fogging from the inside to keep your vision clear.

On the other hand, the Sig Sauer boasts a hardy build due to its aluminum body. Just like its counterpart, it has O-rings that lock all water and dust out. This makes it ideal to use in wet areas without worry, and dusty regions will also not affect the visual quality of the device. It also handles impact and recoil with prowess.

The Vortex Strikefire II boasts a better and much stronger build that is also equipped to resist fogging, making it a better device than the Sig Sauer Romeo 5. 

Battery Life

A scope with a long battery life is convenient, and this is why the Vortex Strikefire II stands out. One battery lasts up to a jaw dropping 80,000 hours. However, this length of time can be reduced based on your chosen brightness settings, with the brighter levels causing to last a shorter period.

The Sig Sauer Romeo 5 comes in with an impressive 40,000 hour battery life which, just like the counterpart’s, is determined by the brightness settings. The brighter the level, the shorter the battery life.

The Vortex Strikefire II has a significantly longer battery life, making it a better scope than the Sig Sauer Romeo 5.  

Vortex Strikefire II vs. Sig Sauer Romeo 5 – A comparison Overview

Vortex Strikefire II Overview

This device is small in stature, but it packs quite the performance punch that is ideal for both beginners and professionals. Made with high quality glass, its 30mm objective lens makes certain that your target acquisition is as near-perfect as possible.

It comes with a 4 MOA red dot size, making it incredible for long range shooting. In addition, users gain access to 10 brightness adjustment levels that support visual quality all through. Two of these levels are ideal to use with night mode, making sure that you can hunt both during the day and in the night.

This scope is made to be a structurally sound device that can withstand heavy impact and recoil without shattering. For all year use, it is made to be waterproof, dust proof and fog proof. This makes it excellent for even the harshest weather conditions.


  • Comes with a clear glass lens
  • Ideal 4 MOA dot size
  • Supports night mode
  • Strong and durable


  • It is pretty expensive

Sig Sauer Romeo 5 Overview

This device may be small, but it is not one to be taken lightly. It is an incredible device for short and mid-range shooting for beginners as well as recreational shooters. For clarity and wide field of view, it comes with a 20mm objective lens.

It has a red dot size of 2 MOA which translates to a range of approximately 100 yards. In addition, it comes with 10 brightness levels, two of which are ideal for use in places that have low light. with such settings, you can enjoy your hunts even in the cover of dark.

The Sig Sauer Romeo 5 is also made to be hardy, bearing the capacity to withstand heavy impact as well as maintain its integrity after many rounds of recoil. It makes an excellent device to use in multiple environments, especially since it is both water and dustproof.


  • Excellent for short and mid-range shooting
  • Comes with 10 brightness adjustment levels
  • Hardy and waterproof
  • Small and light


  • Not ideal for long range shooting

Verdict: So, which one is better – Vortex Strikefire II or Sig Sauer Romeo 5?

Owing to its excellent build and all rounded performance, the Vortex Strikefire II makes a better scope than the Sig Sauer Romeo 5 scope. It has better MOA, supports night mode and also comes with an incredibly hardy body, making it excellent for professionals and beginners alike.


  1. Where is the Sig Sauer Romeo 5 made?

This device is made in the USA.

  1. What is the Vortex Strikefire II’s weight?

It weighs 7.2 oz.



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