When comparing Razer Naga Chroma vs Logitech G303, the Slant community recommends Logitech G303 for most people. In the question“What is the best gaming mouse?” Logitech G303 is ranked 14th while Razer Naga Chroma is ranked 26th. The most important reason people chose Logitech G303 is:
The G303, along with the Logitech G502 and G900 and the Corsair M65 PRO RGB, has the single best sensor on the market, the Pixart PMW3366. This sensor has no acceleration or angle snapping that can't be disabled and has a native DPI of 12,000.
Specs
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Pros
Pro Tons of easy to program buttons
Great for MOBAs, MMOs, and even FPSs.
Pro Side buttons are mechanical and angled
The 12 side buttons on the Razer Naga Chroma have mechanical switches inside. Mechanical switches have a great tactile and audible feedback while also having great longevity. The buttons themselves are also angled which makes it easier to find the correct button to use.
Pro Tilt-click scroll wheel
The scroll wheel can be pressed left, right, or down.
Pro Braided cord
Pro Super comfortable to use
Perfectly conforms to any grip type in your hand. Can use this mouse for hours on end.
Pro Right or left handed models available
The Razer Naga Chroma comes in either a right or left handed model.

Pro Excellent sensor
The G303, along with the Logitech G502 and G900 and the Corsair M65 PRO RGB, has the single best sensor on the market, the Pixart PMW3366. This sensor has no acceleration or angle snapping that can't be disabled and has a native DPI of 12,000.

Pro Compact size gaming mouse
People with small hands needn't look at mice like the Corsair M65 gaming mouse and despair. The G303 gaming mouse has a solution. It's about the size of the $5 USB mice that are often bundled with desktop computers, but it has most of the features of a full-size gaming mouse.
Pro Comfortable
Logitech G303 is very comfortable if you have medium to small hands, and if you are using your mouse with claw or fingertip grip.

Pro Accessible price
The G303 gaming mouse has an MSRP of $49.99, but it goes on sale rather frequently for as low as $24.99. Compared to high-end gaming mice like the Rival 700 and the G502, that's quite a steal.

Pro RGB lighting
It glows. You can change the colors. There isn't much more to say, except that it will fit in with basically any setup that uses black devices with colored lights.
Cons
Con The shape will not feel comfortable for everyone
The shape does not work with palm grips that well.
Con Heavy
Unsuitable for most hardcore FPS games. This mouse will easily make your hand tired due to its weight of 135g.
Con Side buttons are not for everyone
Takes your thumb some getting used to, hitting the correct button.
Con Proprietary software needed to take advantage of all of the mouses features
Users will need to install Razers Synapse software to take advantage of most of this mouses features such as the programmable keys.
Con Build quality not the best
Scrolling wheel sometimes makes cranking noises while you are scrolling through it. If you tighten the mouse from the sides, the cheap plastic will make a noise.
Con A minimum selection of buttons
The Logitech G303 only has one controllable button on the top, two buttons on the side and a programmable mousewheel. The mouse offers six different buttons if you include left- and right-click.
