Controllers / Compare

GameSir G8 Galileo vs Turtle Beach Stealth Ultra

A

Product A: GameSir

G8 Galileo

64 of 151 known

Change GameSir G8 Galileo

Compare the Turtle Beach Stealth Ultra with

Search controllers

B

Product B: Turtle Beach

Stealth Ultra

85 of 151 known

Change Turtle Beach Stealth Ultra

Compare the GameSir G8 Galileo with

Search controllers

All 151 fields

Every value links to where we found it.

Only differences

AGameSir G8 Galileo

BTurtle Beach Stealth Ultra

General

7 of 11 differ

Series

G81Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026Maker names the model line G8: G8 Galileo here, G8 Plus for the wireless sibling.

Stealth1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

GSG8001-11Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026Variant G8 has SKU GSG8001-1. The bundle G8 + Carring Bag has SKU GSG8001+WCRBD001 and the same barcode. It is not stored as a variant because the page does not describe the bag. Alltron (retailer) lists GSG8001 with EAN 6936685223004 for the grey USB-C model.

TBS-0710-051Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Exact maker product structured data names TBS-0710-05. Original black Stealth Ultra with included dock, transmitter and case. Stealth Pivot and Victrix are excluded.

GTIN / EAN

69366852000431Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026Barcode of the G8 variant, shared with the bundle variant on the maker page.

7318550071035Retailer pagephotopoint.ee/en/gaming-consoles-and-accessories/4869990-turtle-beach-wireless-controller-stealth-ultraRead 8 October 2026Exact original Black manufacturer code TBS-0710-05 and published EAN/UPC 731855007103. No retailer identifier is substituted for a maker code.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

30 November 202312Press releasemarkets.chroniclejournal.com/chroniclejournal/article/bizwire-2023-11-30-turn-your-controller-into-a-command-center-introducing-turtle-beachs-groundbreaking-designed-for-xbox-stealth-ultra-wireless-controllerRead 8 October 2026Original Turtle Beach announcement syndicated from Business Wire. Initial announcement, separate from December 15 retail launch.

Status

Available1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026Maker store lists the product as in stock.

Available1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Original reference remains available in the exact US storefront. Current $219.99 offer is not original MSRP.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$79.995Press releasefunkykit.com/news/gamesir-launches-the-g8-galileo-mobile-gaming-controllerRead 15 October 2026Launch release reprint dated 2023-12-04: "now available for purchase for $79.99".12Reviewtrustedreviews.com/reviews/gamesir-g8-galileoRead 15 October 2026Review of 2024-01-12, spec box: "USA RRP $79.99" and UK RRP £79.99. The same page lists weight 253 g from its own spec box, which is not a stated measurement. The maker value 252 g is kept.

$199.9913Maker product pagenews.xbox.com/en-us/2023/12/06/holiday-favorite-designed-for-xbox-thingsRead 8 October 2026Xbox platform holder December 6, 2023 announcement names original Stealth Ultra preorder 199.99 USD and December 15 launch. Current 219.99 store price is not launch MSRP.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

€89.996Press releasegamesmea.com/gamesir-launches-next-generation-g8-galileo-mobile-gaming-controllerRead 15 October 2026Launch release dated 2023-11-30: "$79.99/ £79.99/ €89.99/ JP¥11,182". The tax treatment of the euro price is not stated.

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

US1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026US maker-store purchase reference. Regional warranty terms are not merged.

ColoursiThe maker's own colour names

Not available

Black5Retailer pagephotopoint.ee/en/gaming-consoles-and-accessories/4869990-turtle-beach-wireless-controller-stealth-ultraRead 8 October 2026

Form factor

Mobile clamp2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Phone is clamped between two grips on a stretchable bridge.

Gamepad1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Stick layout

Offset2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Device Layout drawing: left stick above the D-pad, right stick below the A/B/X/Y buttons.

Offset1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Exact maker front render and guide layout show left stick above D-pad and right stick below ABXY.

Face button labels

Xbox2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Layout names A/B/X/Y, View, Menu, LB/RB/LT/RT.

Xbox1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Made by the platform holder

No2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026GameSir product.

No1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Turtle Beach-produced, Xbox-licensed hardware. Licensing does not make it Microsoft-produced.

Compatibility

6 of 9 differ

Platforms

Android, iOS3Maker product pagegamesir.com/pages/tutorial-how-to-use-gamesir-g8-galileoRead 15 October 2026FAQ 1: "iPhone 15 series and Android." The buy page spec table says Android only. The FAQ and the launch release both name the iPhone 15 series, so iOS is stored.

Xbox Series X|S, Xbox One, Windows, Android, Other1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Windows 10/11 and Android 12.0+ are stated. Other means supported Bluetooth smart TVs without invented TV operating systems. iOS phone notifications do not establish iOS gameplay.

Connection per platform

AGameSir G8 Galileo

Platform	Connection	All features
Android	USB (wired)	Not available
iOS	USB (wired)	No

Source3Maker product pagegamesir.com/pages/tutorial-how-to-use-gamesir-g8-galileoRead 15 October 2026FAQ 2: "Built-in wired Type-C to your phone". iOS is marked without full features because the GameSir App is Android only.

BTurtle Beach Stealth Ultra

Platform	Connection	All features
Xbox Series X|S	USB (wired)	Not available
Xbox Series X|S	2.4 GHz	Not available
Xbox One	USB (wired)	Not available
Xbox One	2.4 GHz	Not available
Windows	USB (wired)	Not available
Windows	2.4 GHz	Not available
Windows	Bluetooth	No
Android	Bluetooth	No
Other	Bluetooth	No

Source2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Current maker connection table additionally names Windows Bluetooth. Xbox gameplay uses included 2.4 GHz USB transmitter or USB cable, not direct Xbox Wireless. Bluetooth gameplay is Windows, Android and supported smart TVs. Guide excludes headset audio controls over Bluetooth. Separate APP LINK to iOS/Android purely relays phone notifications and is excluded from gameplay rows.

Official licence

Not available

Designed for Xbox1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Input modes

DirectInput7Measurementgamepadla.com/gamesir-g8-galileo.htmlRead 15 October 2026Tested over the cable in DInput on Windows 11.

Not available

Mode switching

Button combo2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Hold View + Menu for 2 s to switch modes: white for PS mode, green for Android mode, blue for G-Touch mode.

On-device menu2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Built-in Command Display CONNECT menu selects and pairs Wireless Xbox/PC or Smart Devices. This is a display menu, not companion app or direct mode-button combination. USB cable takes priority when attached.

Native Steam Input supportiOfficial Steam Input integration that exposes controller-specific inputs. This does not mean a game uses the Steam Input API or that the controller has only one input protocol.

Not available

Not available

Wakes the supported consoleiWhether the controller can wake a supported console from sleep. The applicable console or Steam Machine is identified in source notes.

Not available

Not available

Max phone length

185mm1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026"Compatible Device Length 110-185mm / 4.3 - 7.3 in".3Maker product pagegamesir.com/pages/tutorial-how-to-use-gamesir-g8-galileoRead 15 October 2026FAQ 1: 110-185 mm long, 13 mm or below deep, camera depth 5 mm or less, measured without a phone case. FAQ 7 does not recommend a phone case and allows one under 1 mm.

Not available

Works with phone case

Not available

Not available

Connectivity

7 of 15 differ

Connections

USB (wired)1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026"Built-in wired Type-C to your phone".

USB (wired), 2.4 GHz, Bluetooth1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Controller Bluetooth versioniBluetooth version implemented by the controller. Host device minimum requirements are not the controller’s Bluetooth version.

Not available

Not available

Wireless receiver

None2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Wired controller with no wireless link.

Included1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Receiver connector

Not available

USB-A1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Wireless range (claimed)

Not available

9.144m9Maker product pageuk.turtlebeach.com/blog/ultimate-couch-gaming-setup-wireless-controllers-with-30-foot-rangeRead 8 October 2026Exact Stealth maker UK October 28, 2025 article claims 30-foot range. Exact unit conversion 30 ft x 0.3048 m/ft = 9.144 m. Nominal claimed distance, not guaranteed achieved range. Transport/environment unspecified. Generic Bluetooth/2.4 GHz rates are not exact-controller polling claims.

Paired device slots

Not available

Not available

Wired connector

USB-C1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026Built-in movable Type-C plug that connects to the phone.

USB-C2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026

USB

Not available

Not available

Detachable cable

Not available

Yes2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026

Cable length

Not available

3m2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Guide explicitly states 3 m. Maker also markets 10 feet. Explicit metric value is used, without an exact conversion from rounded feet.

Cable type

Not available

USB-A to USB-C cable2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026

Claimed polling rate by connectioniMaker-claimed report rate for the stated connection and platform. Tournament modes or protocol requirements go in source notes. This is not input latency or a reviewer measurement.

Not available

Not available

Polling rate wired

Not available

Not available

Polling rate wireless

Not available

Not available

Polling rate Bluetooth

Not available

Not available

Sticks

5 of 15 differ

Stick sensor

Hall effect1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026"Hall Effect Sticks".

Hall effect1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Stick module nameiPublished module part number or maker-branded stick mechanism. A brand name does not establish the component manufacturer.

Not available

AntiDrift1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Maker-branded AntiDrift stick mechanism. Internal component supplier and part number are unknown.

Stick resolution (claimed)

Not available

Not available

Default dead zone (claimed)

Not available

Not available

Adjustable dead zoneiTrue when the stick dead zone can be changed on the controller or in an app. A switch between the default and a zero dead zone counts.

Yes2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026"Use GameSir App for firmware upgrade, button testing, sticks & triggers zones adjustment".

Yes2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026

Adjustable response curve

Not available

Yes2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026AXIS MAPPING documents Standard, Precision and Fast responses. No custom curve editor or default percentage is invented from example screens.

Adjustable stick tension

No7Measurementgamepadla.com/gamesir-g8-galileo.htmlRead 15 October 2026Crowd-submitted spec list, marked unverified: Stick tension: No.

Not available

Tension levels

Not available

Not available

Stick throw

Not available

Not available

Stick gate

Not available

Not available

Stick click (L3/R3)

Yes2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Device Layout names LS and RS as the sticks pressed down.

Yes15Reviewwindowscentral.com/accessories/turtle-beach-stealth-ultra-review-style-and-substance-with-superfluous-social-featuresRead 8 October 2026Exact review explicitly identifies L3 and R3 as clicking the sticks and documents their addition to remapping through firmware. Physical stick click is separate from firmware-qualified button assignment.

Swappable stick tops

Yes2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026"You can interchange the thumbsticks according to your preferences."12Reviewtrustedreviews.com/reviews/gamesir-g8-galileoRead 15 October 2026"Those analogue sticks can be replaced by lifting off the G8 Galileo's magnetised face plates, with three different stick options supplied in the box."

Not available

Stick tops includediStick cap styles included in this configuration. Counts fitted caps as well as spare caps. Optional caps sold separately are not included.

Small thumbstick, High thumbstick, Round thumbstick2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Package contents: Small Thumbstick x1, High Thumbstick x1, Round Thumbstick x1. The manual does not say which style is fitted at purchase.

Not available

Replaceable stick modules

Not available

Not available

Stick calibration

On the device2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Hold View + Menu + Home for 5 s to enter the stick and trigger calibration mode on the controller.

On the device2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026SYSTEM Calibration explicitly performs stick and trigger calibration on the controller.

Triggers

3 of 10 differ

Trigger sensoriDigital is on or off. Analog is for analog triggers whose sensor no source names.

Hall effect1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026"Hall Effect analog triggers".

Hall effect4Reviewgamesradar.com/turtle-beach-stealth-ultra-reviewRead 8 October 2026Exact original-controller review explicitly identifies Hall Sensor triggers separately from Hall sticks. No sensor from another Turtle Beach model is transferred.

Trigger resolution

Not available

Not available

Trigger travel

Not available

Not available

Trigger stops

No7Measurementgamepadla.com/gamesir-g8-galileo.htmlRead 15 October 2026Crowd-submitted spec list, marked unverified: Trigger lock: No.

Yes3Reviewpcgamer.com/turtle-beach-stealth-ultra-controller-reviewRead 8 October 2026

Trigger stop positions

Not available

23Reviewpcgamer.com/turtle-beach-stealth-ultra-controller-reviewRead 8 October 2026Review explicitly states full deep travel and one shallower setting, with no intermediate setting. No travel millimetres are published.

Trigger stop type

Not available

Mechanical3Reviewpcgamer.com/turtle-beach-stealth-ultra-controller-reviewRead 8 October 2026Physical switches alter trigger depth. No click-trigger conversion or adaptive motor resistance is claimed.

Shortest trigger travel

Not available

Not available

Adjustable trigger dead zone

Yes2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Same app sentence: sticks & triggers zones adjustment.

Yes2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026AXIS MAPPING explicitly applies dead zones to both sticks and triggers, separate from physical trigger stops.

Hair trigger mode

Yes2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Hold M + LT/RT for 2 s to enable or disable hair trigger.

Yes16Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Maker explicitly describes shorter hair-trigger locks. This means the physical short-travel setting, not a digital click-trigger conversion, virtual zero dead zone or adaptive resistance.

Adaptive triggers

Not available

Not available

Buttons

11 of 17 differ

Face button switches

Membrane1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026ABXY: "Membrane, 5 million-click lifespan".

Micro switch1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Face button switch nameiPublished switch or mechanism name. May be the maker’s branded design rather than a component part number.

Not available

Not available

Swappable face buttons

Not available

Not available

Bumper switches

Not available

Micro switch1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

D-pad

Cross2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Device Layout drawing shows a plus-shaped D-Pad.

Disc3Reviewpcgamer.com/turtle-beach-stealth-ultra-controller-reviewRead 8 October 2026Exact review identifies concave disc. Current maker images match. Guide schematic uses a cross icon, which is not treated as a distinct physical variant.

D-pad switches

Not available

Micro switch1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Rear grip buttons or paddlesiMaximum number of additional rear grip inputs the controller supports. Excludes standard shoulder buttons and triggers (L1/R1/L2/R2 or LB/RB/LT/RT), extra shoulder buttons and front buttons. Removable paddles are counted when fitted. Check the box contents for included paddles.

21Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026"Back Buttons 2" and "Extra Buttons 2 Back Buttons".

41Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Rear grip input typeiPhysical form of the additional rear grip inputs. Swappable means the same slots accept alternative button and lever or paddle shapes.

Buttons2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Back view drawing shows two round buttons labelled L4 and R4.

Buttons1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Maker names four mappable quick-action buttons. Guide shows integrated rear inputs, distinct from removable Elite levers. Reviewers also call these paddles.

Removable rear paddlesiWhether rear paddles or lever-shaped back buttons can be removed by the user. This does not count the standard shoulder buttons or triggers.

Not available

No3Reviewpcgamer.com/turtle-beach-stealth-ultra-controller-reviewRead 8 October 2026Review explicitly states rear paddle buttons cannot be removed by the user. Repair disassembly is a separate operation.

Additional shoulder buttonsiAdditional physical shoulder or bumper buttons. Excludes standard L1/R1/L2/R2 or LB/RB/LT/RT controls and rear grip inputs.

Not available

02Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Complete original top/front/back inventory shows normal LT/RT and LB/RB, physical trigger-lock switches and four rear inputs. Locks and display/system controls are excluded.

Additional remappable buttonsiCounts additional remappable controls across the rear, shoulders and front. Excludes normal face buttons, D-pad directions, stick clicks, standard shoulders and triggers, and system or profile buttons. Optional removable paddles count when fitted.

22Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026L4 and R4 on the back. They can be mapped to A/B/X/Y/LB/RB/LT/RT/LS/RS/View/Menu/Capture/D-Pad. The M button is a function key and is not counted.

41Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Four extra rear gameplay inputs. Normal face buttons, system controls and display focus are excluded.

On-controller remappingiAt least one configurable gameplay button can be remapped using controller controls without a companion app. Does not imply that every button is remappable without software.

Yes2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Hold M + L4/R4, then press the button to map. No app is needed.

Yes2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026

Custom onboard profilesiNumber of additional named or custom profiles stored on the controller, beyond any separate default bank identified by the maker. Excludes app-only profiles. Does not assume the default bank is immutable.

Not available

101Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Ten custom onboard slots, 1 through 10. The guide identifies no separate default bank.

Profile switch controliA dedicated button, or a dedicated function button used in a combination, that switches saved controller profiles.

Not available

Yes2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Dedicated input-focus button transfers controls to dashboard, then LB/RB switch profiles. Same dedicated button returns focus to gameplay. No standalone profile button is asserted.

Turbo

Yes2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Hold M, then press the button that needs turbo. Configurable buttons: A/B/X/Y/LB/RB/LT/RT.

Not available

Macros

Not available

Not available

Share or capture button

Yes2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Device Layout lists a Capture Button.

Yes2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Guide front layout and dashboard distinguish standard Xbox share/capture and the separate display-focus control.

Feedback

4 of 5 differ

RumbleiFeedback features as published. Trigger rumble means dedicated trigger-vibration feedback, separate from motor-driven adaptive trigger resistance. HD haptics follows the maker’s stated high-definition feedback feature.

Not available

Rumble, Trigger rumble (impulse triggers)2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026

Rumble motor type

Not available

Not available

Rumble motors in grips

08Reviewexpertreviews.co.ukRead 15 October 2026Review: "there's no support for any haptics or rumble". Gadgetmatch's G8 Plus comparison table also lists Rumble Motor: No for the G8 Galileo.

22Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Guide VIBRATION states four motors and individually labels Left Side, Right Side, Left Trigger and Right Trigger. This field counts only the two grip motors.

Trigger rumble motors

08Reviewexpertreviews.co.ukRead 15 October 2026Same review statement, no haptics or rumble of any kind.

22Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Two individually named trigger motors. Four total is not stored as the grip count. Actuator type and adaptive trigger resistance are not inferred.

Adjustable rumble

Not available

Yes2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026

Motion and touch

4 of 12 differ

Gyroscope

No9Reviewgadgetmatch.com/gamesir-g8-plus-review-specs-price-mobile-bluetooth-controllerRead 15 October 2026G8 Plus vs G8 Galileo comparison table: 6-axis gyroscope: No for the G8 Galileo. The same table lists no battery, no rumble motor and a headphone jack.

Not available

Combined motion sensor axesiTotal gyroscope and accelerometer axes. A three-axis gyroscope plus a three-axis accelerometer is a six-axis motion sensor.

Not available

Not available

Gyro as mouse

Not available

Not available

Touchpad

Not available

Not available

Touchpads

Not available

Not available

Clickable touchpadiSupports a press-to-click action, including pressure-sensed haptic clicks. Does not imply a mechanically moving switch.

Not available

Not available

NFC

No7Measurementgamepadla.com/gamesir-g8-galileo.htmlRead 15 October 2026Crowd-submitted spec list, marked unverified: NFC support: No.

Not available

IR camera

Not available

Not available

Built-in display

No7Measurementgamepadla.com/gamesir-g8-galileo.htmlRead 15 October 2026Crowd-submitted spec list, marked unverified: Display: No.

Yes1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Light bar

Not available

Not available

RGB lighting

Not available

Yes1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Lighting zones

Not available

Not available

Measured

4 of 13 differ

Measured input latencyiHardware-measured latency for the documented stock setup. Connection, input, operating system, input mode, firmware, tester and settings are recorded in source notes. Polling rate is a separate report-rate measurement. Different setups are separate rows.

AGameSir G8 Galileo

Connection	Input	Average (ms)	Min (ms)	Max (ms)	Jitter (ms)	Polling rate (Hz)	Tested on
USB (wired)	Button	4.28	2.09	6.53	1.16	457	Windows
USB (wired)	Stick	7.82	4.8	10.38	1.28	457	Windows

Source7Measurementgamepadla.com/gamesir-g8-galileo.htmlRead 15 October 2026Prometheus 82 v5.2.3.1, tests #6591 (button) and #6600 (stick) on 2025-09-28 by JayBee. Windows 11 build 10.0.26100, cable, DInput, firmware 129.60. Stick latency at 99% deflection. Polling rate comes from the site's software test. Page status is Not verified yet and it lists 5 more tests that were not stored.

BTurtle Beach Stealth Ultra

Not available

Button latency wired (measured, highest average)iHighest average latency among the stored reviewer setups for this connection and input. It is not the maximum individual event or a guaranteed result for every platform. See source notes for each setup.

4.28ms=CalculatedFrom Measured input latency

Not available

Button latency wireless (measured, highest average)iHighest average latency among the stored reviewer setups for this connection and input. It is not the maximum individual event or a guaranteed result for every platform. See source notes for each setup.

Not available

Not available

Button latency Bluetooth (measured, highest average)iHighest average latency among the stored reviewer setups for this connection and input. It is not the maximum individual event or a guaranteed result for every platform. See source notes for each setup.

Not available

Not available

Stick latency wired (measured, highest average)iHighest average latency among the stored reviewer setups for this connection and input. It is not the maximum individual event or a guaranteed result for every platform. See source notes for each setup.

7.82ms=CalculatedFrom Measured input latency

Not available

Stick latency wireless (measured, highest average)iHighest average latency among the stored reviewer setups for this connection and input. It is not the maximum individual event or a guaranteed result for every platform. See source notes for each setup.

Not available

Not available

Stick latency Bluetooth (measured, highest average)iHighest average latency among the stored reviewer setups for this connection and input. It is not the maximum individual event or a guaranteed result for every platform. See source notes for each setup.

Not available

Not available

Measured stick testsiReviewer measurements for each stick under the connection, input mode, firmware and calibration settings documented in source notes. Inner dead zone reported as absent is stored as zero. Outer dead zones in mm are not converted to percent.

Not available

Not available

Inner dead zone (measured, worst stick)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Circularity error (measured, worst stick)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Measured battery lifeiReviewer-measured runtime under the connection, activity, rumble and lighting settings stated in source notes. Missing setup cells are unknown, not disabled.

AGameSir G8 Galileo

Not available

BTurtle Beach Stealth Ultra

Hours (h)
18

Source8Measurementwindowscentral.com/accessories/turtle-beach-stealth-ultra-review-style-and-substance-with-superfluous-social-featuresRead 8 October 2026Jennifer Young January 12, 2024 review explicitly says she clocked around 18 h with ECO mode. Approximate reviewer-observed runtime. Article discusses Xbox games and firmware 1.06, but does not state exact runtime transport, firmware, clocking endpoints, rumble state, brightness, or continuous versus accumulated sessions. Conditions are unknown, not disabled. No maker claim or other-model result transferred.

Full charge time (measured)iReviewer measurement from an empty battery to full. Source notes identify the power source, connection, controller operating state and test method when published. Partial charges and maker claims are excluded.

Not available

Not available

Weight (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Audio

2 of 6 differ

3.5 mm jack

Yes1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026"Audio 3.5mm Audio Jack".12Reviewtrustedreviews.com/reviews/gamesir-g8-galileoRead 15 October 2026"You also get a 3.5mm headphone jack and a USB-C port on the bottom of device for pass-through phone charging."

Yes1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Jack works over

USB (wired)11Maker product pagegamesir.com/pages/tutorial-how-to-use-gamesir-g8-galileoRead 15 October 2026The 3.5 mm jack sits on the controller bridge. The only data connection is the built-in wired Type-C plug, so the jack works over USB wired. The maker does not state this in words.

USB (wired), 2.4 GHz2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Exact Xbox/PC setup provides game sound and microphone through the jack during receiver/cable use. Dashboard audio options are unavailable in Bluetooth mode. Xbox game/chat mixing and PC game/microphone routes remain distinct.

Speaker

Not available

Not available

Microphone

Not available

Not available

Microphone mute controliDedicated physical button or switch on the controller that mutes a built-in or connected headset microphone. Excludes a normal gameplay button assigned to mute through software.

Not available

No2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Dashboard microphone mute uses ordinary A gameplay button after input focus changes to display. Complete layout has no dedicated physical mute button/switch. Software mute is excluded under this field definition.

Expansion port

Not available

Not available

Battery and charging

12 of 13 differ

Battery type

None3Maker product pagegamesir.com/pages/tutorial-how-to-use-gamesir-g8-galileoRead 15 October 2026FAQ 4: "No, it's a wired controller, no need for charging and just powered by your phone."

Built-in2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Guide explicitly describes an internal battery, charged via dock or USB-C. This is not an externally swappable pack.

Batteries

03Maker product pagegamesir.com/pages/tutorial-how-to-use-gamesir-g8-galileoRead 15 October 2026Same FAQ 4 answer.

16Owner's manualifixit.com/Guide/Turtle+Beach+Stealth+Ultra+Battery+Replacement/199148Read 8 October 2026Exact TBS-0710-05 guide and original Step 11/12 pictures show one installed pack. Internal cell count is not claimed.

Batteries included

No3Maker product pagegamesir.com/pages/tutorial-how-to-use-gamesir-g8-galileoRead 15 October 2026Same FAQ 4 answer.

Yes2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026

Battery capacity

Not available

1,500mAh6Owner's manualifixit.com/Guide/Turtle+Beach+Stealth+Ultra+Battery+Replacement/199148Read 8 October 2026Original high-resolution Step 12 installed battery label states 1500 mAh, 3.7 V and 5.55 Wh. Original image URL is exposed in public guide HTML. Component label rating, not reviewer energy measurement. No generic maker 2000 mAh blog headline or distinct controller revision is inferred.

Battery energy

Not available

5.55Wh6Owner's manualifixit.com/Guide/Turtle+Beach+Stealth+Ultra+Battery+Replacement/199148Read 8 October 2026Directly printed 5.55 Wh on installed original-model pack. No calculation from guessed voltage/capacity.

Claimed battery lifeiMaker-claimed runtime. Missing connection, rumble or lighting cells mean that the maker did not state that condition. A plus sign or up-to qualifier is preserved in source notes.

AGameSir G8 Galileo

Not available

BTurtle Beach Stealth Ultra

Hours (h)
30
7

Source7Maker product pageeu.turtlebeach.com/blog/why-2000mah-rechargeable-battery-changes-gamingRead 8 October 2026Maker February 27, 2026 article explicitly names Stealth: up to 30 h Eco mode, or 7 h with all features maxed out. Transport, active rumble and lighting conditions are not separately specified, so omitted. Generic 2000 mAh headline is not exact battery capacity. EU couch-gaming article says 40 h, conflicting with current exact product and original launch 30 h. Cause unknown, 40 h excluded.

Longest claimed battery lifeiLargest numerical runtime figure in the stored maker claims. A 35+ hour claim is a lower-bound figure, not an upper limit. Up-to, approximate and plus qualifiers are preserved in source notes.

Not available

30h=CalculatedFrom Claimed battery life

Charging connectoriConnector used for charging a rechargeable battery. On AA-powered controllers, USB charging requires a compatible rechargeable pack and does not recharge ordinary AA cells.

None3Maker product pagegamesir.com/pages/tutorial-how-to-use-gamesir-g8-galileoRead 15 October 2026No battery. The Type-C port on the controller is a pass-through charging port for the phone (maximum input 9V/3A), not a battery charger.

USB-C2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026

Full charge time (claimed)iMaker-claimed charging time from an empty battery to full. Charger, cable and controller power state are noted when published.

Not available

Not available

Charging dock

Not available

Included1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Dock

Not available

Rapid Charge Dock1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Play while charging

Not available

Yes2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Guide explicitly states USB cable operation takes priority and internal battery charges in that state. Docked gameplay is not claimed.

Battery indicator

Not available

LED, Display2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026CHARGING states red low-battery and green full-charge LEDs. Dashboard diagram shows battery icon. Generic 2-hour rapid charge and fully recharges wording lack an explicit empty-start endpoint, so claimed 0-to-100 duration is omitted.

Build

3 of 5 differ

Shell material

Not available

Not available

Grip texture

Laser-engraved texture grips5Press releasefunkykit.com/news/gamesir-launches-the-g8-galileo-mobile-gaming-controllerRead 15 October 2026"Laser-Engraved Texture Grips ensure a secure and comfortable hold". The same release also names exclusive impulse triggers through the Android app. No trigger motors are published, see rumble_motor_count.

Ribbed handles with soft-touch finish3Reviewpcgamer.com/turtle-beach-stealth-ultra-controller-reviewRead 8 October 2026Review names ribbed handles and maker names soft-touch finish. No shell polymer composition is inferred.

Swappable grips

Not available

Not available

Swappable faceplate

Yes2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026"The faceplates of the GameSir G8 are magnetic and swappable."

Not available

User-replaceable parts

Magnetic faceplates, Thumbstick caps2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Interchange Parts section shows the faceplates and the thumbstick caps coming off.

Internal battery (requires disassembly), Thumbstick grip caps6Owner's manualifixit.com/Guide/Turtle+Beach+Stealth+Ultra+Battery+Replacement/199148Read 8 October 2026Guide explicitly removes bracket and cable connector after controller disassembly, without soldering. Actual repair access with tools, not a hot swap.16Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Maker includes two additional pairs of thumbstick grip caps for tactile preference. These externally fitted grip overlays are separate from the internal battery repair recorded by iFixit. No replaceable stick module is inferred.

Software

2 of 3 differ

Companion app

GameSir App1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026"Customization Software GameSir App". The page spec table lists the platform as Android only, which is narrower than the maker FAQ.

Turtle Beach Control Center 21Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

App platforms

Android2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026"Customization via GameSir App (*Exclusive Android system support)". The maker product page also shows the generic GameSir App on iOS and Google Play. The G8 manual and FAQ say Android only.

Xbox Series X|S, Xbox One, Windows, Android, iOS1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Maker lists Xbox, Windows, Android and iOS apps. Mobile notification/configuration support is separate from gameplay. Firmware update routes are specifically Xbox/Windows in the review.

User firmware updates

Yes2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026GameSir App is used for firmware upgrade.

Yes1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Dimensions and weight

2 of 2 differ

Body dimensionsiController body dimensions, excluding packaging and dock. Width is side to side across the front face. Height is top to bottom across the front face. Depth is front-to-back thickness. Maker axes are reordered when needed without changing the published lengths.

Width217Height107Depth54mm(8.5 × 4.2 × 2.1 in)1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026Physical Specs cell "252 g / 217*107*54 mm", normalized to front width x front height x thickness. The 217 mm figure is the maker body size and does not state the stretch state.

Width160Height120Depth64.2mm(6.3 × 4.7 × 2.5 in)5Retailer pagephotopoint.ee/en/gaming-consoles-and-accessories/4869990-turtle-beach-wireless-controller-stealth-ultraRead 8 October 2026Exact TBS-0710-05 body table labels Width 160, Height 120 and Depth 64.2 mm, with controller 246 g. Establishes maker unlabelled tuple axes. Separate 19 x 17.8 x 7.8 cm package dimensions and contradictory 0.12 kg gross entry are excluded.

Weight (claimed)iMaker-published controller weight with its battery. Fitted sticks, paddles or other accessories and any published tolerance are stated in the source notes. Excludes packaging and dock.

252g(8.9 oz)1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026Physical Specs cell: 252 g. Gadgetmatch lists 242.9 g in a comparison table. The maker value is kept.

246g(8.7 oz)1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Maker controller body weight including internal battery. Excludes dock, case, receiver, cable and packaging.

Certifications

1 of 1 differ

FCC ID

Not available

XGB-STEALTHULTRA11Regulatory filingfcc.report/FCC-ID/XGB-STEALTHULTRARead 8 October 2026Public original controller filing names STEALTH ULTRA. Transmitter separate identifier ending D is excluded. Direct internal/label PDF requests returned 403. No unread component or CE declaration from those files is claimed.

Other certifications

FCC Part 15, CE, 2014/30/EU, 2011/65/EU, (EU) 2015/8632Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Manual FCC statement: complies with part 15 of the FCC Rules. EU statement: Directive 2014/30/EU and 2011/65/EU and its amendment (EU) 2015/863. Class is not stated.

Not available

In the box

3 of 3 differ

In the box

Controller, Interchangeable Thumbstick Caps x 3, Card, Sticker, User Manual1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026Box list on the buy page: Controller x1, Interchangeable Thumbstick Caps x3, Card x1, Sticker x1, User Manual x1.2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026Package contents: GameSir-G8 x1, Small Thumbstick x1, High Thumbstick x1, Round Thumbstick x1, User Manual x1, Thank You & After-sale Service Card x1, GameSir Sticker x1, Certification x1. The buy page list is stored.

Stealth Ultra controller, Wireless USB-A transmitter, Rapid Charge Dock, 3 m USB-A to USB-C cable, Four additional thumbstick grip caps, Hard-shell carrying case, Quick Start Guide, Turtle Beach sticker1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026Original standard configuration. Four spare grip caps are overlays, not replacement stick mechanisms. Case has charge-through access.

Cables included

AGameSir G8 Galileo

Not available

BTurtle Beach Stealth Ultra

Type	Length (m)	Count
USB-A to USB-C cable	3	1

Source2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026

Carrying case

Not available

Hard1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Warranty

0 of 2 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year10Maker product pagegamesir.com/support/faqRead 15 October 2026Maker warranty policy: 12-month replacement with the same model for abnormal function and manufacturing defects. The Australian clause says "1 year warranty from the date of purchase".

1year10Maker product pagesupport.turtlebeach.com/articles/en_US/Knowledge/218427478-RMA-Return-Merchandise-Authorization-for-Defective-ProductRead 8 October 2026Maker retail policy states one year from original purchase and explicitly includes USA. Applied to new US reference. Used, refurbished 90-day, retailer extended and statutory regional terms excluded.

Stick drift warranty

Not available

Not available

Links

Not compared

Product page

gamesir.com/products/gamesir-g8-galileo1Maker product pagegamesir.com/products/gamesir-g8-galileo/buyRead 15 October 2026Maker product page.

www.turtlebeach.com/products/stealth-ultra-controller1Maker product pageturtlebeach.com/products/stealth-ultra-controllerRead 8 October 2026

Spec sheet

Not available

Not available

Manual

cdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdf2Owner's manualcdn.shopify.com/s/files/1/2241/8433/files/G8_manual.pdfRead 15 October 2026One-page multilingual manual linked from the maker's support manuals page https://gamesir.com/support/manuals/gamesir-g8-galileo. The English column is titled GameSir Galileo, Type-C wired mobile gaming controller. It requires Android 8.0 or above and a Type-C connection.

s3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdf2Owner's manuals3-eu-west-1.amazonaws.com/media.markselectrical.co.uk/manuals/10400650.pdfRead 8 October 2026Original maker 17-page Product Guide TBS-0710-05-PG-EN-A hosted by the exact retailer. All pages read. Layout, dashboard, axis and vibration sections visually inspected. Maker support landing pages did not expose readable document links.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Both are also in the API. Back to all controllers.