Peg Perego PEG Viaggio Flex 120 Alternatives: 6 Similar Picks Compared
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The Peg Perego Viaggio Flex 120 High Back Booster uses rigid LATCH for stable installation and features a folding design that simplifies storage. Its aluminum-reinforced backrest and four-way adjustable seat provide comfort and safety for growing children. You might consider Peg Perego Peg Viaggio Flex 120 alternatives if you need a backless option or a different installation method. Some families prefer seats with integrated harnesses or specific weight limits that differ from the Flex 120's specifications.
We selected these alternatives because their published specs overlap with the original product. This list includes high back boosters from brands like Britax, Chicco, and UPPAbaby. You will find options with varying widths, weights, and adjustment features. Some models offer 2-in-1 functionality, while others focus on slim profiles for three-across vehicle fits. Each pick is evaluated based on its dimensions, booster type, and connection hardware. This comparison helps you find a seat that matches your vehicle's space and your child's size requirements without relying on subjective opinions.
Our top pick: Peg Perego Viaggio Flex 120 Folding Booster.
Alternatives to the Flex 120
Britax Skyline 2-in-1 Belt-Positioning Booster
The Britax Skyline 2-in-1 transitions from high back to backless, while the Flex 120 remains a high back booster only. The Skyline is lighter at 11 pounds compared to the Flex 120’s 14.8 pounds. It is also wider at 19.5 inches versus 12 inches. This extra width may limit three-across fits. You lose the folding capability found in the Flex 120. However, you gain a backless mode for older children. If you need a booster that grows with your child beyond the high back stage, this is a practical choice. The Skyline uses belt positioning rather than rigid LATCH. It suits families prioritizing weight and versatility over compact folding storage.
Chicco MyFit 2-in-1 Harness High Back Booster
The Chicco MyFit includes a 5-point harness, offering more restraint options than the Flex 120’s booster-only design. It is significantly heavier at 25 pounds, making it harder to move than the 14.8-pound Flex 120. The Chicco is also wider at 17.5 inches. It lacks the folding feature of the Flex 120. You gain side impact protection and harness security. The Flex 120 uses rigid LATCH for installation, while the Chicco relies on belt positioning or LATCH straps. Choose the Chicco if you need a harness for younger children. Pick the Flex 120 if you prefer a lighter, foldable booster that fits narrower vehicle seats. The Chicco is better for safety-focused families with space.
Diono Connect3 R Slim 2-in-1 Booster
The Diono Connect3 R Slim is a 2-in-1 booster with a harness, unlike the Flex 120’s booster-only setup. It is lighter than the Flex 120 and features a slim 16.3-inch width. This width aids three-across fits. The Dionno does not fold, unlike the Flex 120. You gain harness versatility and a narrow profile. You lose the rigid LATCH and folding convenience. The Flex 120 is taller at 26 inches. The Diono is shorter at 23.6 inches. Pick the Diono if you need a harness or have a narrow back seat. Choose the Flex 120 for its foldable design and rigid LATCH stability. The Diono is ideal for mid-sized vehicles needing space efficiency.
Britax Grow with You 2-in-1 Harness Booster
The Britax Grow with You includes a 5-point harness, while the Flex 120 is a booster only. The Britax is heavier at 23 pounds versus 14.8 pounds. It is also wider at 19 inches. This width may challenge narrow vehicles. The Britax does not fold, unlike the Flex 120. You gain a steel frame and harness options. You lose compact folding and rigid LATCH. The Flex 120 uses rigid LATCH for secure installation. Choose the Britax if you need a harness for younger kids. Pick the Flex 120 for its lightweight, foldable design. The Britax suits families valuing durability and harness security over portability and narrow fit.
UPPAbaby Alta V2 High Back Booster
The UPPAbaby Alta V2 uses rigid LATCH like the Flex 120, ensuring stable installation. It is taller at 33 inches compared to the Flex 120’s 26 inches. This height accommodates taller children. The UPPAbaby is wider at 17.5 inches. It does not fold, unlike the Flex 120. You gain a taller profile and rigid LATCH. You lose the folding convenience. The Flex 120 is lighter at 14.8 pounds versus 17 pounds. Choose the UPPAbaby if you need extra height and rigid LATCH. Pick the Flex 120 for its foldable design and lighter weight. The UPPAbaby suits families prioritizing height and secure installation over compact storage.
Diono Connect3 RXT Slim 2-in-1 Booster
The Diono Connect3 RXT is a 2-in-1 booster with a harness, unlike the Flex 120’s booster-only design. It is lighter and narrower at 16.3 inches, aiding three-across fits. The Diono does not fold, unlike the Flex 120. You gain harness versatility and a slim profile. You lose the folding feature and rigid LATCH. The Flex 120 uses rigid LATCH for stability. Choose the Diono if you need a harness or narrow fit. Pick the Flex 120 for its foldable design and rigid LATCH. The Diono is ideal for mid-sized vehicles needing space efficiency. The Flex 120 is better for families valuing portability and secure installation.
Quick picks
Our 7 picks
Peg Perego Viaggio Flex 120 Folding Booster
Best for: families needing rigid LATCH and folding storage
- Booster Type
- High Back
- Weight Range
- 40-120 lbs
- LATCH Type
- Rigid LATCH
- Features
- Compact Fold
- Dimensions
- 17 × 12 × 26 inches
- Weight
- 14.8 pounds
View on Amazon: Peg Perego Viaggio Flex 120 Folding Booster Affiliate link
The Peg Perego Viaggio Flex 120 is a high back booster seat made in Italy. It features rigid LATCH for stable installation and an aluminum-reinforced backrest for added safety. The seat folds for compact storage and offers five recline positions. Weighing 14.8 pounds, it balances portability with durability. This model suits families who prioritize adjustable comfort and secure mounting in their vehicle.
Pros
- Integrated rigid LATCH for easy and stable installation
- Aluminum-reinforced backrest for enhanced collision protection
- Folds compactly for convenient storage and transport
- Five-position recline for child comfort on long trips
- 4D Total Adjust Technology for independent headrest and wing adjustments
Cons
- Heavier than many competitors at 14.8 pounds
- Lacks a belt-positioning guide for manual adjustment
- No mention of machine-washable cover materials
Good fit if
- You want a high back booster with rigid LATCH anchors
- You need a seat that folds for easy transport
- You prefer adjustable headrests and side wings for growing children
Skip if
- You need a lightweight seat under 12 pounds
- You require a backless booster option
- You prefer a seat with a machine-washable cover
Verdict: Peg Perego Viaggio Flex 120 High Back Booster is a solid choice for parents seeking a durable, adjustable high back seat with rigid LATCH. It fits families who value installation stability and compact folding capabilities.
Britax Skyline 2-in-1 Belt-Positioning Booster
Best for: transitioning to a backless booster
- Booster Type
- 2-in-1 (highback and backless)
- Weight Range
- 40 to 120 lbs
- Height Range
- Up to 63"
- Harness System
- Belt-positioning
- Headrest Positions
- 10-position
- Cup Holders
- 2 dishwasher-safe
View on Amazon: Britax Skyline 2-in-1 Belt-Positioning Booster Affiliate link
The Britax Skyline is a 2-stage belt-positioning booster seat that transitions from a highback booster to a backless seat. It accommodates children from 40 to 120 pounds and up to 63 inches tall. At 11 pounds, with a 10-position headrest and two dishwasher-safe cup holders, you get a lightweight seat that supports your child across two distinct booster modes.
Pros
- Converts from a highback booster to a backless booster
- Fits children up to 63 inches and 120 pounds
- 10-position quick-adjust headrest
- Includes 2 removable, dishwasher-safe cup holders
Cons
- Minimum child weight requirement is 40 pounds
- Uses vehicle belt positioning without an integrated 5-point harness
- 19.5-inch width takes up notable backseat space
Good fit if
- You want a seat that converts into a backless booster
- You need a height capacity of up to 63 inches
- You prefer an 11-pound seat that is easy to move between cars
Skip if
- You need an integrated 5-point harness for younger children
- You need a seat narrower than 19.5 inches for tight backseat spacing
Verdict: Britax Skyline 2-Stage Booster Seat fits families transitioning from a highback shell to a backless booster for kids up to 63 inches. Its 11-pound build and color-coded guides serve passengers ready for standard vehicle seat belts.
Chicco MyFit 2-in-1 Harness High Back Booster
Best for: Slim 3-across fit and side impact safety
- Booster Type
- 2-in-1
- Weight Range
- 26.5-100lbs.
- Harness System
- 5-point harness, belt-positioning
- LATCH Type
- Premium LATCH
- Headrest Positions
- 9
- Cup Holders
- Two dishwasher-safe
View on Amazon: Chicco MyFit 2-in-1 Harness High Back Booster Affiliate link
The Chicco MyFit is a 2-in-1 car seat that converts from a 5-point harness to a high back booster. It features Advanced Side Impact Protection and a slim 17.5-inch width to fit three across. The design includes a 9-position headrest and dual-density foam padding. Two dishwasher-safe cup holders are included. This seat suits families needing a durable, space-saving option for growing children.
Pros
- Slim 17.5-inch width fits 3-across
- Advanced Side Impact Protection (ASIP)
- 9-position headrest and 4-position recline
- Two dishwasher-safe CupFolders included
Cons
- Heavier at 25 pounds
- No mention of fabric washability
- Standard 5-point harness only
Good fit if
- You need a slim seat for three across
- You want side impact protection
- You prefer a 2-in-1 design
Skip if
- You need a lightweight seat under 20 pounds
- You require a convertible 3-stage seat
- You want a seat with a no-rethread harness
Verdict: Chicco MyFit 2-in-1 Harness Booster offers a slim profile and robust safety features for growing kids. It fits families who prioritize side impact protection and space efficiency in their vehicle.
Diono Connect3 R Slim 2-in-1 Booster
Best for: Slim three-across fitting in mid-sized vehicles
- Booster Type
- 2-in-1 High Back
- Weight Range
- 40-120 lbs.
- Headrest Positions
- 11
- Cup Holders
- Removable cup holder
- Target Audience
- Kids
- Features
- Lightweight, Highback Booster
View on Amazon: Diono Connect3 R Slim 2-in-1 Booster Affiliate link
The Diono Connect3 R is a slim 2-in-1 high back booster seat designed for children weighing 40 to 120 lbs. It measures 16.3 inches wide, allowing for a three-across fit in many mid-sized vehicles. You get 11 headrest positions and a reclining backrest for comfort. It includes a removable cup holder and ventilation features to keep your child cool and secure during travel.
Pros
- Slim 16.3-inch width fits three-across in many sedans and SUVs
- 11 headrest positions adjust as your child grows
- 2-position reclining backrest with ergonomic headrest for napping
- Includes removable cup holder that nests between seats
Cons
- Only fits children 40 to 120 lbs, not for toddlers
- No harness mode, requires vehicle seat belt only
- Heavier build than standard plastic boosters
Good fit if
- You need to fit three car seats across a back bench
- Your child is between 40 and 120 lbs
- You want a reclining option for long trips
Skip if
- You need a harness-to-booster 2-in-1 seat
- Your child weighs less than 40 lbs
- You prefer a lightweight, backless-only design
Verdict: Diono Connect3 R 2-in-1 High Back Booster offers a slim profile for three-across fits and adjustable comfort for growing kids. It suits families with mid-sized vehicles who need a dedicated high back booster for older children.
Britax Grow with You 2-in-1 Harness Booster
Best for: Families needing a durable 5-point harness booster
- Booster Type
- 2-in-1 High Back
- Harness System
- 5-point harness, belt-positioning
- LATCH Type
- Quick-push LATCH connectors
- Cup Holders
- 2 cup holders
- Features
- 5-Point Harness, Highback Booster
- Dimensions
- 21 × 19 × 25 inches
View on Amazon: Britax Grow with You 2-in-1 Harness Booster Affiliate link
The Britax Grow with You is a 2-in-1 high back booster with a 5-point harness. It features a 9-point adjustment system for the harness and headrest, allowing you to change the fit without rethreading straps. The seat includes two cup holders and two recline positions. It weighs 23 pounds and measures 19 inches wide. This model suits families needing a durable seat that grows with their child from toddler to big kid.
Pros
- 9-point harness and headrest adjustment without rethreading
- Quick-push LATCH connectors for easy installation
- Includes two cup holders for convenience
- High-strength steel frame with crumple zone
- Two recline positions for vehicle fit
Cons
- Heavier at 23 pounds compared to lighter boosters
- Wider at 19 inches, which may limit 3-across fit
- Only two cup holders included
Good fit if
- You want a 5-point harness that transitions to a booster
- You prefer quick-adjust features without rethreading straps
- You need a durable seat with a steel frame
Skip if
- You need a slim seat for 3-across installation
- You prefer a lightweight seat under 20 pounds
- You do not need a harness mode
Verdict: Britax Grow with You 2-in-1 Booster offers a durable steel frame and easy 9-point adjustments for growing children. It fits families who value safety features and convenience over slim dimensions.
UPPAbaby Alta V2 High Back Booster
Best for: Slim vehicle fit and rigid LATCH security
- Booster Type
- High Back
- Weight Range
- 40–100 lbs
- Height Range
- 38–57”
- LATCH Type
- Rigid LATCH
- Cup Holders
- Removable, dishwasher-safe
- Features
- Highback Booster
View on Amazon: UPPAbaby Alta V2 High Back Booster Affiliate link
The UPPAbaby Alta V2 is a high back booster seat designed for children weighing 40 to 100 pounds and measuring 38 to 57 inches in height. It features rigid LATCH connectors for secure installation and a seven-position active support headrest. The slim 17.5-inch width allows for better vehicle fit, while removable, washable fabrics simplify maintenance. This seat prioritizes safety and ease of use for growing kids.
Pros
- Rigid LATCH connectors ensure secure vehicle attachment
- Slim 17.5-inch width maximizes space
- Removable, dishwasher-safe cup holder
- Washable fabrics for easy cleaning
Cons
- Heavier at 17 pounds compared to plastic boosters
- Requires vehicle LATCH anchors for installation
- No harness mode for younger children
Good fit if
- You need a high back booster for a child between 40 and 100 pounds
- You want a slim seat that fits across three middle rows
- You prefer a booster with rigid LATCH for easy installation
Skip if
- You need a 2-in-1 seat with a harness for toddlers
- You do not have LATCH anchors in your vehicle
- You prefer a lightweight plastic booster under 10 pounds
Verdict: UPPAbaby Alta V2 High Back Booster offers a secure, slim profile for older children. It suits families who value rigid LATCH installation and easy cleaning over harness versatility.
Diono Connect3 RXT Slim 2-in-1 Booster
Best for: Slim fit three-across installations
- Booster Type
- 2-in-1 High Back
- Weight Range
- 40-120 lbs.
- LATCH Type
- Easy-release strap connectors
- Headrest Positions
- 11
- Target Audience
- Kids
- Features
- Lightweight, Latch Connectors, Highback Booster
View on Amazon: Diono Connect3 RXT Slim 2-in-1 Booster Affiliate link
The Diono Connect3 RXT is a 2-in-1 high back booster designed for slim fit installation. At 16.3 inches wide, it allows three-across seating in many mid-sized sedans and SUVs. It features an 11-position adjustable headrest and backrest. The seat supports children weighing 40 to 120 lbs. You will appreciate the easy-release LATCH connectors and the ergonomic headrest for napping.
Pros
- Slim 16.3-inch width fits three-across
- 11-position adjustable headrest and backrest
- Easy-release strap LATCH connectors
- Supports 40 to 120 lbs weight range
- Ergonomic headrest for comfortable napping
Cons
- Limited to high back booster mode only
- No harness mode for younger children
- Heavier build due to steel frame construction
Good fit if
- You need to install three car seats side-by-side
- You prefer easy-release LATCH connectors
- Your child is a frequent napper in the car
Skip if
- You need a harness mode for toddlers
- You require a backless booster option
- You prefer a lightweight plastic-only design
Verdict: Diono Connect3 RXT Slim High Back Booster is ideal for families needing a slim fit for three-across seating. Its easy-release LATCH connectors and 11-position adjustments make it a practical choice for mid-sized vehicles.
Specifications side by side
| Spec | Peg Perego Viaggio Flex 120 Folding Booster | Britax Skyline 2-in-1 Belt-Positioning Booster | Chicco MyFit 2-in-1 Harness High Back Booster | Diono Connect3 R Slim 2-in-1 Booster | Britax Grow with You 2-in-1 Harness Booster | UPPAbaby Alta V2 High Back Booster | Diono Connect3 RXT Slim 2-in-1 Booster |
|---|---|---|---|---|---|---|---|
| Booster Type | High Back | 2-in-1 (highback and backless) | 2-in-1 | 2-in-1 High Back | 2-in-1 High Back | High Back | 2-in-1 High Back |
| Weight Range | 40-120 lbs | 40 to 120 lbs | 26.5-100lbs. | 40-120 lbs. | not stated | 40–100 lbs | 40-120 lbs. |
| Height Range | not stated | Up to 63" | not stated | not stated | not stated | 38–57” | not stated |
| Harness System | not stated | Belt-positioning | 5-point harness, belt-positioning | not stated | 5-point harness, belt-positioning | not stated | not stated |
| LATCH Type | Rigid LATCH | not stated | Premium LATCH | not stated | Quick-push LATCH connectors | Rigid LATCH | Easy-release strap connectors |
| Headrest Positions | not stated | 10-position | 9 | 11 | not stated | not stated | 11 |
| Cup Holders | not stated | 2 dishwasher-safe | Two dishwasher-safe | Removable cup holder | 2 cup holders | Removable, dishwasher-safe | not stated |
| Target Audience | not stated | not stated | not stated | Kids | not stated | not stated | Kids |
| Features | Compact Fold | not stated | Highback Booster | Lightweight, Highback Booster | 5-Point Harness, Highback Booster | Highback Booster | Lightweight, Latch Connectors, Highback Booster |
| Seat Design | not stated | not stated | 2-in-1 | 2-in-1 | 2-in-1 | not stated | 2-in-1 |
| Dimensions | 17 × 12 × 26 inches | 16 × 19.5 × 27.5 inches | 20 × 17.5 × 26 inches | 18.1 × 16.3 × 23.6 inches | 21 × 19 × 25 inches | 20 × 17.5 × 33 inches | 18.1 × 16.3 × 23.6 inches |
| Weight | 14.8 pounds | 11 pounds | 25 pounds | not stated | 23 pounds | 17 pounds | not stated |
| Size | 1 Count (Pack of 1) | 63 Inch (Pack of 1) | oz. | not stated | not stated | not stated | not stated |
| Color | Crystal Black | Dusk | Haven | Purple Wildberry | Mod Black | Black Mélange | Blue Razz Ice |
| Model | IMVF00US35DP53DX13 | E1C269H | 06087211870070 | 56274 | E1C442T | not stated | 56252 |
Looking beyond this list? See peg perego john deere ground force alternatives.
Frequently asked questions
Which booster seat is the best for three-across installations?
The Diono Connect3 R Slim and Diono Connect3 RXT Slim are top choices for narrow vehicle rows. Both seats measure 16.3 inches wide, allowing for tighter spacing between car seats. They are designed specifically for families who need to fit three children across the back bench of mid-sized vehicles without compromising on safety or comfort.
What is the lightest high back booster on this list?
The Britax Skyline 2-in-1 Belt-Positioning Booster is the lightest option at 11 pounds. Its low weight makes it easy to move between vehicles or store when not in use. This portability is useful for families who frequently travel or need to switch seats between multiple cars for different drivers.
Which booster offers a backless mode for older children?
The Britax Skyline 2-in-1 transitions from a high back booster to a backless model. This feature allows the seat to grow with your child as they outgrow the need for head support. It accommodates children up to 120 pounds, making it a long-term solution for older kids who use the vehicle seat belt.
Does any booster have a rigid LATCH system like the Flex 120?
The UPPAbaby Alta V2 High Back Booster also features rigid LATCH connectors for a secure installation. This system clicks directly into the vehicle anchors, reducing installation errors and providing stability. It is a strong alternative if you prefer the ease and security of a fixed LATCH connection over a belt-path installation.
Which booster is the widest and heaviest?
The Chicco MyFit 2-in-1 Harness High Back Booster is the heaviest at 25 pounds and measures 20 inches in length. While it is not the widest, its substantial build supports its robust side impact protection features. This seat is best for families who prioritize maximum safety infrastructure over slim dimensions or portability.
Can I use a booster with a 5-point harness?
Yes, the Britax Grow with You 2-in-1 and Chicco MyFit 2-in-1 both include 5-point harnesses. These seats allow you to keep your child in a harness for longer before transitioning to the vehicle seat belt. The Britax model offers nine adjustment points for a customized fit as your child grows.
Which booster is the best for slim vehicle fit?
The Diono Connect3 R Slim and UPPAbaby Alta V2 are excellent for narrow vehicle rows. The Diono models are 16.3 inches wide, while the UPPAbaby is 17.5 inches wide. These dimensions help maximize space in the back seat, which is critical for families with multiple children or smaller cars.