Skip to content
Saved

Ownership burden/Robot Vacuums/2 robots compared/Reviewed Aug 2026

Roomba Max 705 vs Shark PowerDetect UV Reveal: ownership cost

$1,800 to $2,4755-year total. Purchase price is between 53% and 72% of what these machines actually cost to run.
iRobot Roomba Max 705 ComboView recordiRobotIIIMax 705 Combo5-year total$2,475
Shark PowerDetect UV RevealView recordSharkIIIPowerDetect UV Reveal5-year total$1,800
Full specifications17 measurements · 27 of 34 documented
MSRP
$1,299.99
$1,299
Rated runtime
120 min
180 min
Charge time
180 min
240 min
Battery capacity
72 Wh
Not documented
Battery type
Li-ion
Not documented
Navigation
ClearView Pro LiDAR with 3D mapping and automatic room labeling, paired with PrecisionVision AI object recognition
NeuroNav AI: 360-degree spinning LiDAR with RGB and 3D sensors plus an UltraRange Camera; LiDAR and 3D sensors handle obstacle avoidance; multi-floor mapping; self-docking.
Connectivity
wifi, alexa, google_home
wifi
Dimensions (W×D×H)
14.4 × 14.7 × 4.1 in
Not documented
Weight
12.6 lbs
4.4 lbs
Form factor
round
round
Readiness
Ready Now
Ready Now
Released
Sep 2025
Mar 2026
Dock type
Auto-empty, mop washing
Auto-empty (bagless), mop washing, hot-water washing, drying
Threshold climb
0.6 in
Not documented
Onboard dustbin
260 mL
Not documented
Water tank capacity
180 mL
Not documented
Mop lift
Not documented
20 mm

Five-year cost of ownership

What each robot actually costs to own

Purchase price plus documented consumables, subscription gating, and replacement events. Bars share one dollar scale, so length is directly comparable. Costs are typical, drawn from manufacturer maintenance guides and owner reports.

PurchaseConsumables

Shark PowerDetect UV Reveal$1,299 purchase
$1,8005-year total+$501 past purchase
  • MSRP$1,299
  • Consumables, estimated (5 yr)$501

iRobot Roomba Max 705 Combo$1,300 purchase
$2,4755-year total+$1,175 past purchase
  • MSRP$1,300
  • Consumables (5 yr)$1,175

Documented failure events

When things break, and what they cost

Field-reported failures placed on the ownership timeline, with associated repair or replacement costs. Sourced from owner forums and manufacturer service documentation.

Month 1 Shark UV Reveal mop testMinor

Mop leaves more residual moisture than category average

$0, performance shortfall not a repair

Vacuum Wars measured 3.4 grams of water left behind on the mop's lowest setting and 5.3 grams on medium, against category averages of 0.95 and 1.1 grams; some floors took over 30 minutes to dry.

Vacuum Wars lab test, 2026
Month 1 Shark UV Reveal obstacle testMinor

Blocked path halts the robot instead of routing around it

$0, owner clears the path

Trusted Reviews blocked part of a room and the robot reported it could not find its location, then returned to base rather than finishing the run; removing the obstacle let it resume.

Trusted Reviews test report, 2026
Month 3 Roomba Max 705 ComboMinor

Dock auto-empty port clogs in pet-heavy homes

$0, owner-cleared clog

Owner reports collected across roughly 150 threads describe the AutoWash dock's auto-empty port clogging with pet hair and debris, stopping the self-empty cycle until the owner clears it by hand.

150 owner reports, r/RobotVacuums 2026
Month 9 Roomba Max 705 ComboMinor

AutoWash cycle clogs and crosses water into the dry side

$0, owner-cleared, unpaid time

Owner threads describe the AutoWash cycle clogging repeatedly, with one owner reporting water pulled into the dock's dry side during a combined vacuum-and-mop run, requiring a manual clear before the next cycle.

Owner threads, RedditRecs compilation 2026

Consumables breakdown

Annual cost by part type

Read from each robot’s own record, not restated here. A part is priced only from the manufacturer’s published price for a part its own page lists for that machine, and costed only where a replacement interval has been established. Anything else is left unpriced rather than estimated.

Part · frequencyMax 705 ComboShark PowerDetect UV Reveal
Dust bagUp to every 75 days$32 / yrNot priced
FilterEvery 3-6 months$13 / yrNot priced
Annual total$45.72 / yrcovers 2 itemized partsNot establishedno parts recorded

Common questions

What readers ask about this comparison.

Q.
Does either robot require a subscription to fully function?
No. Neither manufacturer’s published specifications list a subscription tier; both dock-and-mop routines run on set consumable and refill schedules instead of a recurring fee.
Q.
What is the largest recurring cost on the Roomba Max 705 Combo?
iRobot’s AutoWash dock meters a proprietary cleaning solution refilled roughly every eight weeks, alongside dock bags rated up to 75 days between changes. Combined with filters and roller wear, iRobot’s own maintenance documentation puts total consumables near $235 a year.
Q.
Why is there no consumables total published for the Shark PowerDetect UV Reveal?
The robot shipped in March 2026, roughly five months before this comparison, and SharkNinja has not published filter, brushroll, or mop-pad pricing. The consumables figures here are order-of-magnitude estimates, not manufacturer quotes.
Q.
Does the UV stain sensor need a replacement bulb?
No. Shark’s UV emitter is solid-state rather than a gas bulb, so the company lists no UV lamp or module as a serviceable part.
Q.
Which dock needs more manual attention week to week?
Both docks need a weekly clean-water refill and dirty-water empty. The Roomba’s dock adds a roughly eight-week cleaning-solution refill that the Shark’s water-only wash cycle does not require, per each manufacturer’s maintenance guide.
Next up

Dreame L60 Ultra vs Shark PowerDetect UV Reveal: Which Costs More?

Read the comparison
Comparison ID: RV–CMP–8794 · Last reviewed Aug 13, 2026 · Based on owner reports, manufacturer documentation, and firmware release notes