





Graco Tranzitions 3-in-1 Harness Booster Car Seat, Proof
Price went up recentlyRose from $111.99 to $139.99 on October 8.
at Amazon
Above the middle of our record.
Go to Amazon$139.99 is above the middle of our record.
The middle price across the 23 days we have watched it, counting the days a limited-time deal was running, was $111.99. That is $28.00 less than today. It reached $111.99 at least once in that time, and the high was $139.99.
Today's price is $28.00 above its usual $111.99.
This describes the prices we recorded. It is not a forecast of where this one goes next.
Price at AmazonVerified
Price history
One line: the best price any tracked retailer charged, per day.
Lightning or limited-time deal
sales rank — the line rises as it sells moreShaded stretches are sales, from our calendar.
| Price | Now | Lowest | Highest | Usual | Average | Days recorded |
|---|---|---|---|---|---|---|
| New | $139.99 | $111.99 on Sep 18 | $139.99 on Oct 8 | $111.99 | $115.64 | 23 |
#43 of the 196 Baby we track, by Amazon sales rank.
Sales events
Next on the calendar: Black Friday, November 27. We keep checking this price through it and report here what it did.
What our record shows
- $28.00 more than the $111.99 it cost on September 18 — this price went up, not down.
Computed from our own checks at Amazon as of October 10. No line here uses a price a retailer told us about.
Where to buy
- Held for
- 2d
- Their 23-day low
- $111.99
- Checked
- 12h ago
Prices checked at least every 12 hours. “Held for” is how long that retailer has been charging this price. A hidden price is one we cannot re-confirm recently enough to publish.
We earn a commission on purchases. It never affects our rankings.
Tell me when it drops
A notification in this browser when the price falls. No email, no account, nothing to install.
A notification carries a button that stops that alert; blocking notifications for this site in your browser stops them all.
Other versions of this model
These differ in size or count, so the prices are listed as they are and not ranked.
Cinder 2.0$139.99
Eloise 2.0$139.99
Proof 2.0this page$139.99
Amazon’s own price for each, read through their API. Verified
What it is
7 attributes, in the retailer’s own words. We record the prices; these we only pass on.
- Size
- 2
- Color
- Proof 2.0
- Weight
- 15.1 pounds
- Dimensions
- 33.5 × 18.9 × 10.47 inches
- Model
- 2215750
- Released
- April 2026
- Warranty
- 1 Year Limited Warranty
Cheaper in Baby, and what changes
Things we track on the same shelf for at least 10% less than $139.99, with the attributes the retailers describe differently. Their words, not our judgement — we record prices, we do not test products.
GracoOn the Go Zip DLX Pack 'n Play Playard, Parker$99.99 at Amazon $40.00 lessWeight: 18.52 pounds instead of 15.1 poundsDimensions: 39.5 × 29 × 28.25 inches instead of 33.5 × 18.9 × 10.47 inches
GracoMade2Grow 5-in-1 Convertible Highchair, Hudson$94.59 at Amazon $45.40 lessWeight: 14.52 pounds instead of 15.1 poundsDimensions: 28.9 × 17.28 × 10.98 inches instead of 33.5 × 18.9 × 10.47 inches
Safety 1stEllaris 3-in-1 Convertible Car Seat, Slim Fit Design, Rear & Forward-Facing, 5-Position Headrest, Travel-Friendly with Machine-Washable Seat Pad, Smokey Haze$99.99 at Amazon $40.00 lessWeight: 12 pounds instead of 15.1 poundsDimensions: 24.4 × 23.3 × 19 inches instead of 33.5 × 18.9 × 10.47 inches
Every change we recorded at Amazon
Every row is a price we saw change. We write one only when a price actually moves, so a gap here means the price held.
| When | Price | Change |
|---|---|---|
| · 2d ago | $139.99 | +$28.00 |
| · 22d ago | $111.99 | first seen |
Others we track in Baby
See all Baby prices
GracoSnugRide Lite LX Infant Car Seat, Lightweight Rear-Facing Seat for Babies 4–30 lb, 4-Position Adjustable Base, Latch Installation & ProtectPlus Engineered, Studio$139.97 · low $111.991 retailer · 2 recorded prices
Safety 1stGrow and Go All-in-One Convertible Car Seat, Alaskan Blue$139.98 · low $119.691 retailer · 4 recorded prices
Baby TrendEZ Ride Travel System with EZ-Lift Infant Car Seat, Dash Grey$143.991 retailer · 2 recorded prices
GracoDuoDiner DLX 6-in-1 Convertible Highchair, Arlo$169.99 · low $135.991 retailer · 2 recorded prices
GracoGraco® Gomax Frame Stroller, Accepts All Graco® Infant Car Seats, Backpack Style Lightweight Travel Stroller Frame$179.99 · low $143.991 retailer · 4 recorded prices
mompushWiz 2-in-1 Bassinet Stroller Reversible Seat, One-Hand Fold, Black$159.991 retailer · 1 recorded price
$139.99
at Amazon · we earn a commission