HiSmith Cannon Sex Machine Review: Is It Worth Buying?

The HiSmith Cannon is worth buying if you want the widest angle range HiSmith publishes, quiet running and app control over the internet. It is not worth buying if you want depth. HiSmith publishes a thrust depth of up to 6 cm for the Cannon - one of the shortest strokes in the range, against 3 to 15 cm on the Premium and 1.7 to 17 cm on the Servok Premium.

Who this guide is for

You are choosing between HiSmith machines and the Cannon has caught your eye because it is app-controlled and quiet. You want to know whether the short stroke is a deal-breaker for you specifically, and nobody has told you straight. This guide gives you the published numbers, the machine it loses to, and the one thing it genuinely does better than anything else in the range.

What HiSmith Actually Publishes About the Cannon

The HiSmith Cannon Sex Machine (Remote and App) is the AK-03 series machine. Here is every figure HiSmith publishes on its own product page. Nothing below is estimated, inferred or borrowed from another model.

In the box: the machine, a power supply, an app chip remote and speed controller pad, and one 8 inch silicone dildo with a KlicLok connector.

One oddity worth naming. HiSmith's specification list gives a thrust speed of 120 strokes per minute and, two lines later, a maximum speed of 240 RPM. Those are two different units describing the same mechanism and the manufacturer does not reconcile them. We are not going to reconcile them for you by picking whichever number flatters the machine. Both are printed on the product page. Treat 120 strokes per minute as the figure you can rely on for stroke rate, and ask us before ordering if that distinction is the thing your decision hangs on.

The Short Stroke: The Cannon's Real Weakness

HiSmith publishes a thrust depth of up to 6 cm for the Cannon. That is the number that should decide this purchase, and it is the number the marketing copy skates past.

Six centimetres is a short stroke. It is not a small machine or a weak machine - the chassis is CNC-machined and the motor is a 48W turbine - but the rod simply does not travel far. If what you want from a sex machine is the sensation of deep, long thrusting, the Cannon will not give it to you. It delivers a fast, shallow, close-in stroke.

Compare like for like. HiSmith publishes 3 to 15 cm for the Premium Sex Machine (Remote and App), 4.9 to 13 cm for the Tabletop 2.0 Pro, and 1.7 to 17 cm for the Servok Premium. On depth, the Cannon loses to all three. The Servok strokes almost three times further at its maximum.

There is a flip side, and it is a real one. A short stroke is a controllable stroke. For anal use, where depth is the thing most likely to hurt you, a machine that physically cannot travel more than 6 cm is a machine that cannot run away with you. That is a genuine argument for the Cannon. It is not an argument that turns 6 cm into a deep stroke.

The Widest Angle Range HiSmith Publishes

The Cannon's angle adjustment runs from -90 to +80 degrees, adjusted at the support connector. Of every HiSmith machine we stock that publishes a tilt range in degrees, that is the widest.

The contrast that matters is the Tabletop 2.0 Pro, which publishes roughly -15 to +15 degrees. That is a 30 degree window against the Cannon's 170. In practice this means the Cannon can be pointed almost straight down or angled well upward, so you can set it up for positions the Tabletop simply cannot reach without you rebuilding the whole arrangement around it. The Premium Sex Machine (Original) publishes 0 to 90 degrees. HiSmith does not publish a tilt figure in degrees for the Servok Premium.

If you have a fixed piece of furniture, an awkward room, or a body position you already know works for you, angle range is worth more than stroke length. That is the case for the Cannon in one sentence.

Cannon vs the Rest of the HiSmith Range

Every figure in this table is taken from the relevant HiSmith product page. Where HiSmith does not publish a figure, the cell says so rather than guessing.

Reading the table honestly. The Cannon and the Tabletop 2.0 Pro run the same 48W motor rating. The Tabletop strokes more than twice as deep and quotes a higher stroke rate. The Cannon answers with an angle range nearly six times wider and app control that works over the internet rather than only in the room. That is the whole trade. If your setup is flexible and you want depth, buy the Tabletop or step up to the Premium. If your setup is fixed and awkward and you want the machine to meet you where you are, buy the Cannon.

Against the Premium and the Servok Premium, the Cannon is simply the smaller motor and the shorter stroke. It is not a flagship and pretending otherwise would waste your money. The full HiSmith buyer's guide compares every model side by side, and the sex machines collection lists what we currently carry.

KlicLok Attachments, Honestly Sized

KlicLok is HiSmith's own patented eight-sided click connector. It is not a brand, it is not a company, and there is no third-party KlicLok market. It clicks straight on and holds the attachment in a fixed, non-rotating position, which is the entire point of the geometry.

The Cannon ships with an 8 inch silicone dildo on a KlicLok connector, so it works out of the box. Beyond that, the sex machine accessories range gives you options, and sizes there need to be read carefully rather than assumed.

• HiSmith 7.5 inch Slim Silicone Anal Dildo (KlicLok) - 19 cm total, 16 cm insertable, 3.8 cm diameter. The slimmest anal attachment HiSmith lists.
• HiSmith 7 inch Veined Slim Silicone Anal Dildo (KlicLok) - 17.8 cm total, 17.2 cm insertable, 4 cm diameter.
• HiSmith 8 inch Silicone Vibrating Pink and Purple Dildo (KlicLok) - 20.3 cm total, 17.3 cm insertable, 9.9 cm diameter. HiSmith describes this one as generously sized, and at that diameter it is. This is not a beginner attachment, whatever the colours suggest.
• HiSmith 4.5 inch Red Suction Cup Adaptor (KlicLok) - accepts suction-cup dildos with a base diameter of 11.3 cm or under. Anything wider will not fit.

Both of the slim attachments are described by HiSmith as anal toys, and both are still 3.8 cm and 4 cm across. Read the safety section below before you assume that is a beginner diameter, because it is not.

Water-based lubricant only, on every silicone attachment in the range. Silicone lube degrades silicone. HiSmith also warns that silicone and PVC toys must be stored apart, because contact between the two materials damages both.

Setup, Control and What Is Not Published

The Cannon has two control paths and they are for different moments. The physical remote is rated at 10 m or more with 8 speed patterns, and it is what you reach for mid-session because it does not require you to pick up a phone. The app carries an integrated app chip and works over an internet connection at any distance, which is what makes remote partner play actually possible rather than theoretical.

Height and stroke length are both independently adjustable, and the angle is set at the support connector across that -90 to +80 degree range.

What HiSmith does not publish, and we will not invent: the Cannon's weight, its dimensions, its footprint, any waterproof or splash rating, and any continuous-use or duty-cycle limit. If floor space or storage is the thing your decision turns on, ask us and we will measure the unit rather than give you a number we made up. For context, the one HiSmith machine in the range with a published duty-cycle limit is the Capsule, at 30 minutes of continuous use.

Safety: Machine, Anal Use and Attachments

Machine

• Never adjust thrust depth while the machine is running. HiSmith says this on the attachment pages and it is the single most common way people get hurt with a machine.
• Check the depth knob is fully tightened and the KlicLok attachment is fully clicked home before you start.
• HiSmith publishes no waterproof rating for the Cannon. It is a mains-powered device drawing 100 to 240V. Do not immerse it, rinse it or take it near a shower. Clean the attachment, not the machine body.
• HiSmith publishes no continuous-use limit for the Cannon. If the motor housing gets hot, stop and let it cool.
• The KlicLok Suction Cup Adaptor is not a mount and not a load-bearing anchor. It holds a suction-cup dildo onto the machine. It does not fix the machine to a wall, a floor or furniture, and it will not take your body weight.
• Do not use oversized dildos or male masturbation cups with the HiSmith Spring Attachment. That is HiSmith's own warning, not ours.

Anal use

• Start at the shortest stroke setting the machine allows, and work up. The Cannon's published maximum is 6 cm. We are not going to soften that number to make anal use sound safer than it is - 6 cm is the real maximum and you should set the machine well below it to begin.
• A flared base is mandatory. If you remove the KlicLok plug from an attachment and use it by hand, check what is left is a genuinely flared base. Anything without one can be drawn into the rectum and require surgical removal.
• The rectum does not self-lubricate. Lube is mandatory and you need more than you think. Water-based, because these attachments are silicone.
• Beginner diameter is 2.5 cm or less. HiSmith's two slim anal attachments are 3.8 cm and 4 cm across. Neither is a beginner diameter. If you are new to anal, do not start on either of them, and do not start on a machine.
• No numbing or desensitising products. Pain is the warning system that stops you tearing. Removing it does not increase what your body can take.
• Never go anal to vaginal without washing the attachment or changing the condom.
• Stop on sharp pain. Bleeding means stop and seek medical care.
• Douching, if you douche at all: warm water only, no soap, and do not over-douche.

Who Should Buy the Cannon

Buy the Cannon if: you need extreme angle flexibility, you want genuinely quiet running at under 50 dB, you want app control that works over the internet rather than only across the room, or you specifically want a machine whose stroke is physically capped short - which for controlled anal use is a feature, not a fault.

Do not buy the Cannon if: depth is what you are after. Six centimetres is 6 cm. No control scheme, motor spec or connector system compensates for a stroke that short. Buy the Premium for 3 to 15 cm, or the Servok Premium for 1.7 to 17 cm, and accept the higher spend as the price of depth.

Do not buy the Cannon as a first machine on price alone. If you have never used one, you do not yet know whether you want depth or control, and the Cannon commits you hard to control. The buyer's guide is a better starting point than a purchase, and the Mini is a smaller commitment.

Why Buy From Pleasing Strings

• Warehouses in Brisbane and Melbourne. Orders placed before 10am dispatch the same day.
• Free shipping over $99.
• Plain, unbranded packaging and a discreet billing descriptor.
• One-year warranty. This sits alongside your rights under Australian Consumer Law, which are not limited by it.
• Afterpay and other buy-now-pay-later options at checkout, subject to each provider's limits.

Related guides

• HiSmith Sex Machines: Complete Buyer's Guide (All Models Compared)
• HiSmith Tabletop 2.0 Pro Review: Is It Worth Buying?
• HiSmith Servok Premium Sex Machine Review: Is It Worth Buying?

Last updated: 13 July 2026