Razer Viper Ultimate vs GLORIOUS Model O Wireless: Which one is better?

The Razer Viper Ultimate and the recently released Model O Wireless have similar shapes. For many people who are currently looking for mice, a direct comparison between these two is the best course of action. I had originally planned to review the razer viper ultimate on its own. Still, as I was writing the review, it became apparent that a direct comparison between these two models was necessary.

In this post, I explored the similarities and, more significantly, the differences between these two mice and why you should choose one over the other. These two mice are at the top of their list.

The Glorious Model O Wireless was recently released for $80. In my review of that mouse, I noted that this is a move that benefits us, consumers because it puts pressure on large corporations like Razer, who eventually gave in. The Razer Viper Ultimate was released last year and was initially priced at $150 with the dock. In what I can only assume is a reaction to the Glorious Model O Wireless, Razer slashed the Viper Ultimate price during Black Friday, selling it for on.

Razer Viper UltimateGlorious Model O Wireless
+ Well-built and almost universal design for all.
+ Buttons and settings are easily customizable.
+ Incredibly low latency.
+ USB receiver storage within battery compartment.
+ Very low click latency.
+ Very light.
+ Smooth gliding experience.
+ Very comfortable for those with medium or large-sized hands.
Not recommended for very large hands.
Only small and medium hands can use it with a palm grip.
Companion software not available on macOS.
Too big for those with small hands.

Razer Viper Ultimate vs GLORIOUS Model O Wireless: Specs

CategoriesRazer Viper UltimateGlorious Model O Wireless
Lighting ColorRGBRGB
Finger RestNoNo
AmbidextrousTrue AmbidextrousShape Only
Grip Width62 mm60 mm
Height1.5″ (38 mm)1.5″ (38 mm)
Width2.6″ (66 mm)2.6″ (67 mm)
Length5.0″ (127 mm)5.0″ (128 mm)
Weight74.9 g69.6 g
Battery IndicatorYesNo

Razer Viper Ultimate vs GLORIOUS Model O Wireless: Similarities

Let’s examine the similarities between the two mice. They are both wireless, ambidextrous, designed with a very safe shape for many people, and in this case, very similar. They are for medium to large hands and feature a fiber claw or fingertip grip, though you can still palm this if your hands are smaller. When choosing your mouse, the shape is king, and these two are nearly identical if you compare them side by side. Their height and grip may differ by just a millimeter.

As a point of reference, my hands measure 19.5 by 11 centimeters, and I primarily play first-person shooters like Destiny and Cyberpunk. I would not consider myself an esports player by any means, but after alternating between these two for weeks, I play equally well. Both sensors have reliable sensors, and latency has never been a problem. Razer and Glorious can devote all of their time to promoting how their sensor or wireless technology is superior to the competition.

Razer Viper Ultimate vs GLORIOUS Model O Wireless: Build & Design

Now that we’ve got that out of the way let’s talk about the construction and design of the mouse. The Razer Viper Ultimate is a stunning mouse, and you can tell that it was well-engineered because the body is solid and has no dings or dents anywhere. It also has a textured rubber grip on the sides that I like and an RGB razor logo on the back.

It is a sight to behold, especially in the dark, but the Glorious Model O Wireless is also a gorgeous mouse, with the LED strips running down both sides of that diffused line serving as the centerpiece of the design. When I first bought this, I also thought it would be an issue since I can be sensitive to stuff like this, but it wasn’t. The honeycomb holes throughout the mice are a design choice here that may be off-putting for some.

Razer Viper Ultimate vs GLORIOUS Model O Wireless: Triggers

The Model O Wireless has Omron 20 million mechanical switches, which feel great. Combine that with the triggers’ tight tolerances, which allow for almost no side play and only a small amount of pre- and post-travel, and you have a very reliable trigger.

Contrarily, the Razer Viper Ultimate uses an optical switch, which should prevent the double-clicking problems present with other mice, but they do feel mushy. I only purchased the Viper Ultimate during the Black Friday sale, so these are the newest models being shipped, and they still don’t feel as good as mechanical switches.

I’ve been switching back and forth between these two mice, and every time I go from the Razer Viper Ultimate to the Model O Wireless, I can immediately tell what the Razer Viper Ultimate needs to be added. It doesn’t affect performance but doesn’t feel as good. I’ve been figuring out why, and although I’m not a mouse engineer, it’s because there isn’t enough tension on the triggers when you click on them.

I don’t know if the more extended triggers contribute to the play and lower tension, but it is there. I do know that some may not find this as an issue, but I do feel it when switching between these mice. The triggers don’t snap back as firmly as mechanical switches coupled with some side play on the triggers, making for a mushy clicking experience.

Razer Viper Ultimate vs GLORIOUS Model O Wireless: Extras

1. Scroll Wheel

The scroll wheel is a mixed bag when you get there. Although pressing the wheel requires a lot of force, the Viper Ultimate sits more slowly and has better tension when scrolling. The Model O Wireless sits higher, which I prefer, but the tension on the wheel is insufficient, weakening tactile feedback. The force needed to press it is just right, but as I mentioned in my review, the wheel started squeaking after two weeks, which I was told is typically caused by hair, fur, or lint getting inside the mouse, and again, I broke it when I dropped it.

2. Side Buttons

Approaching the side buttons The Viper Ultimate has buttons on both sides and ambidextrous support; this feature has advantages and disadvantages. The benefit is that you can access the side buttons using your left hand to operate the mouse. The disadvantage, however, is that Razer had to make the side buttons almost flush on the side to prevent an intentional process on the side that you are not using. If you are like me and prefer to press side buttons with the side of your thumb reliably, you may need to do so with the tip of your thumbs.

I also had to disable the side buttons on the right side because I still occasionally press them during intense games when I grip the mouse too tightly. In contrast, the Model O Wireless has more pronounced side buttons, which I find preferable even though it lacks ambidextrous support.

4. Weight & Glide

Stepping up the weight While the Viper Ultimate weighs 74 grams more than the Model O Wireless, which weighs 69 grams, the weight difference is not as noticeable. Both devices have PTFE feet that glide well, but the Viper Ultimate glides slightly better.

5. Battery, Dock & Cords

Regarding the battery, both devices have a rating of about 70 hours without the RGB turned on. With the RGB turned on, however, the Model O Wireless requires charging after about 15 hours, which is respectable. Still, Razer eliminates battery-related concerns with the dock for the Viper Ultimate. I can’t stress this enough: if you plan to purchase the Viper Ultimate, do so with a dock.

Before purchasing it, I dismissed the Viper Ultimate as unnecessary, but I am a convert after using it. With the Viper Ultimate, I never had to worry about running out of battery life; whenever I took a break from my computer, I would pop it into the stand and always return to a fully charged mouse. In addition, the dock also serves as an extender, and it looks good on the desk.

If you buy the Viper Ultimate without the dock, you would need to charge using their speed flex cable, which is a decent cable but is better than the ascended cord and the Model O Wireless. When you compare that to the need to always have a loose wire on your desk for the Model O Wireless, you can see why the Razor’s implementation is better.


Going by the price, the Model O Wireless blows everyone out of the water at $80 for the Viper Ultimate. $150 is too expensive for a wireless mouse, especially when you have a good alternative at $80. If you can get the viper with the dock for around $100 to $120, that’s acceptable. This is also the reason why the Logitech G Pro X Superlight is excluded from this discussion because that price tag is just way too high and I do


To sum it up, both mice function well, but the Model O Wireless has better triggers. However, only some will like the honeycomb design, and you need to be careful with it because the build quality could be better. The Model O Wireless is a better mouse than the Razer Viper Ultimate because it has a more solid build and an excellent dock, but the optical switches don’t feel as crisp.

The triggers on the Model O Wireless feel better, which elevates it above the Viper Ultimate. If you’re left-handed or don’t care about price and want a more organized and practical charging setup, get the Viper Ultimate. That concludes this post; I sincerely hope I was able to assist you in choosing the best mouse for you.