This mobile controller is the best $60 a gamer could spend this Prime Day

A GameSir G8 Galileo on a purple GamesRadar Prime Day background
(Image credit: Future / Duncan Robertson)

I awarded the GameSir G8 Galileo five stars when I reviewed it. As mobile controllers go, it's pretty hard to beat thanks to longer grips, back buttons, and a comfortable feel. Not only is it "built different" than smaller options like the Backbone One, but it's cheaper - and works for both Game Pass cloud streaming and PS5 remote play. I'd recommend this nifty gaming device at any time of the year, but when it sees a discount because of Prime Day, I'll happily put it in the spotlight.

Down from its $79.99 MSRP, you can currently get it for $61.59 thanks to Prime Day. Even despite Backbone putting up a fight, the G8 is still cheaper than that controller's current $69.99 price tag. I can't remember seeing the G8's cost slipping this low, and considering that it only came out in the latter stages of 2023, an $18 discount isn't too shabby.

It's also worth a reminder that that $18 reduction is coming from a product that's already cheaper than its competitors. The Backbone One costs $99.99 at full price, and the Razer Kishi Ultra costs $149. If you ask me, GameSir's option is a better product anyway, so its lower asking price is icing on the cake. I'd particularly recommend this controller to anyone shopping around for Prime Day PS5 deals, and I'll explain why after I tell you a bit more about this deal.

GameSir G8 Galileo$79.99$61.59 at AmazonSave $18

GameSir G8 Galileo | $79.99 $61.59 at Amazon
Save $18 - This mobile controller connects via USB-C, so it'll work with any Android phone or iPhone 15 onwards. If you need a wireless option, there's the newer GameSir G8 Plus, which will cater to your needs. 

Buy it if: 

✅ You want to take your gaming on the go
✅ You have larger hands
✅ You want back buttons

Don't buy it if: 

❌ You don't have a USB-C device

UK: £59.99 at Amazon

Should you buy the GameSir G8 Galileo?

GameSir G8 Galileo close up

(Image credit: Future / Duncan Robertson)

I think the best way I can sum up why the GameSir G8 Galileo is the best mobile controller, is by describing its USB-C connector. Where the Backbone One and other USB-C controllers make it a stressful affair trying to disconnect your phone, the G8 makes it so easy. Its connector pivots up and down so that you don't run the risk of pulling your phone at slightly the wrong angle, ripping the thing off the controller. It's a massive quality-of-life bonus that makes you wonder how nobody else thought of it before.

As mentioned, this controller will work for Xbox players, or PC players using the likes of GeForce Now, but most surprisingly, it makes the PlayStation Portal feel completely redundant (if it didn't already). The G8, through some wizardry I'm not sure we should alert Sony to, is capable of PlayStation 5 Remote Play. Not all mobile controllers can do that, so for your money here, you're getting a massive utility boost.

Even outside of testing out new mobile controllers, I really enjoy taking my games on the go these days. It's nice not needing to spend the money on one of the best gaming handhelds because you have a phone that's capable of streaming in your pocket. The G8 will slide into a bag really easily, so it's convenient to take on the go.

I think the G8 is particularly recommendable to anyone who's put off by the Backbone One's tiny buttons and thumbsticks. Don't get me wrong, that controller was revolutionary and arguably kicked off the current wave of mobile gamepads. Still, its size makes it uncomfortable, and frequently gives me thumb cramps, which is why I prefer the larger size of the GameSir G8.


For more quick deals to check out this week, take a look at Prime Day Meta Quest deals, Prime Day Kindle deals, and Prime Day PC deals.

TOPICS
Hardware Editor

One of my earliest memories is playing SuperMario64 and wondering why the controller I held had three grips, but I only had two hands. Ever since I've been in love with video games and their technology. After graduating from Edinburgh Napier University with a degree in Journalism, I contributed to the Scottish Games Network and completed an Editorial Internship at Expert Reviews. Over the last decade, I’ve been managing my own YouTube channel about my love of games too. These days, I'm one of the resident hardware nerds at GamesRadar+, and I take the lead on our coverage of gaming PCs, VR, controllers, gaming chairs, and content creation gear. Now, I better stop myself here before I get talking about my favourite games like HUNT: Showdown, Dishonored, and Towerfall Ascension. Location: UK Remote

Read more
Backbone One PlayStation Edition on a desk mat with RGB border lighting
The best mobile controller for gaming 2025
Photo of the GameSir G8 Galileo + controller by author Rosalie Newcombe of it sitting on a table with Christmas tree lights in the background.
This GameSir G8+ Bluetooth controller has made my Nintendo Switch Joy-Cons collect dust and I couldn't be happier
The front of the Asus ROG Tessen mobile controller
This foldable mobile controller is now cheaper than the Backbone One, and it has one thing no one else does
Razer Kishi Ultra's left hand side
Razer's pricey mobile controller is discounted right now, but so is its brand new rival
A Manba One review image showing the controller in its charging stand with its display on
Manba One review: “The power of a PC app in the palm of your hand”
A GameSir Tarantula Pro review image of the gamepad on its stand
GameSir Tarantula Pro review: “This is the pro-DualShock 4 I’ve always wanted”
Latest in Gaming Controllers
Xbox Adaptive Joystick controller with a gray and green background
Microsoft launches its new Adaptive Joystick with 3D printable accessories
The front of the Asus ROG Tessen mobile controller
This foldable mobile controller is now cheaper than the Backbone One, and it has one thing no one else does
A reviewer turning the modules of the Turtle Beach Stealth Pivot
Turtle Beach Stealth Pivot review: “Its novel concept of a spinning, modular design is hamstrung by its lack of options”
The marketing reveal image for the Limited Edition Last of Us DualSense controller with a GamesRadar+ pre-order badge on top
Where to pre-order the Limited Edition Last of Us DualSense controller today
PDP Riffmaster hands-on image of the guitar's plastic body
The PS5 Riffmaster Guitar controller falls to its lowest-ever price, and I think I know why
Hori Wireless Fighting Commander OCTA Pro controller on an orange background
Hori's latest gamepad is up for pre-order, and it's nearly $100 cheaper than other pro controllers for PS5
Latest in Deals
KYY portable monitor next to Steam Deck and GamesRadar+ Best Deals badge with teal backdrop
The Amazon Spring Sale has a portable monitor for under $70, and it's begging to meet my Steam Deck
mClassic upscaler sitting on Nintendo Switch with Mario Kart on screen and Skyward Sword Joycon attached on woodgrain desk.
This Switch gadget could save the handheld from my junk drawer once its sequel arrives, and it's down to a decent price
Razer BlackShark V2 HyperSpeed close up on volume dial
The Razer BlackShark V2 HyperSpeed was already a steal, but the fact it's now under $100 sweetens the deal
Pokemon Destined Rivals booster box and Elite Trainer box against a blue and purple background
Where to buy Pokemon Destined Rivals before resellers snap up the latest TCG set
CRKD Nitro Deck, Glorious GMMK 3 Pro HE, Razer BlackShark V2 Hyperspeed, and Glorious Series 2 Pro gaming accessories on an orange background with badge reading 'best deal'
I've scrolled Amazon's entire Big Spring Sale, these are the seven deals gamers need to know about today
Samsung Odyssey OLED G6 monitor on woodgrain desk with Overwatch 2 character screen displayed and Pharah selected.
Amazon's Spring Sale has knocked Samsung's new QD-OLED monitor to its lowest price, and the timing is perfect