Brand vs brand

Kyte Baby vs Primary sizes

Of Kyte Baby's 10 baby and toddler sizes, 2 line up closely with a Primary size, 8 are partial matches, and 0 have no clean match. Both charts list weight and height, so the comparison uses both.

Closest pairs: Kyte Baby 6-12M = Primary 9-12M, Kyte Baby 12-18M = Primary 12-18M.

Watch the labels: Kyte Baby Newborn is closer to Primary Newborn than to Primary's own Newborn; Kyte Baby 0-3M is closer to Primary 0-3M than to Primary's own 0-3M; Kyte Baby 3-6M is closer to Primary 3-6M than to Primary's own 3-6M.

Kyte Baby Runs smallPrimary True to size

Based on published size charts compared with other brands.

Size by size, on one scale

Each block is one size, placed where the brand's chart puts it. Blocks that sit above each other fit the same baby.

Weight (lb)

Kyte Baby

Preemie: up to 6.6 lb
Newborn: 5.5 to 8.8 lb
0-3M: 8.8 to 11 lb
3-6M: 11 to 17.6 lb
6-12M: 17.6 to 22 lb
12-18M: 22 to 24.3 lb
18-24M: 24.3 to 26.5 lb
2T: 26.5 to 29.8 lb
3T: 27.6 to 32 lb
4T: 33.1 to 35.3 lb

Primary

Newborn: 5.1 to 9 lb
0-3M: 9 to 11.9 lb
3-6M: 11.9 to 15 lb
6-9M: 15 to 18.1 lb
6-12M: 15 to 22 lb
9-12M: 18.1 to 22 lb
12-18M: 22 to 26.9 lb
18-24M: 26.9 to 30 lb
2: 30 to 33.1 lb
3: 33.1 to 35.9 lb
4: 35.9 to 39.9 lb

Height (in)

Kyte Baby

Preemie: up to 18.9 in
Newborn: 18.1 to 20.9 in
0-3M: 20.9 to 22.8 in
3-6M: 22.8 to 27.2 in
6-12M: 27.2 to 29.1 in
12-18M: 29.1 to 31.1 in
18-24M: 31.1 to 33.1 in
2T: 33.1 to 35 in
3T: 35 to 37 in
4T: 37 to 40.2 in

Primary

Newborn: up to 18.1 in
0-3M: 18.1 to 22.8 in
3-6M: 22.8 to 25.2 in
6-9M: 25.2 to 27.2 in
6-12M: 25.2 to 29.1 in
9-12M: 27.2 to 29.1 in
12-18M: 29.1 to 31.1 in
18-24M: 31.1 to 33.1 in
2: 33.1 to 35 in
3: 35 to 38.2 in
4: 38.2 to 40.9 in

Kyte Baby size to Primary size

Kyte Baby	Closest Primary	Match	Weight: Kyte Baby / Primary	Height: Kyte Baby / Primary
Preemie	Newborn	Partial	up to 6.6 lb / 5.1 to 9 lb	up to 18.9 in / up to 18.1 in
Newborn	Newborn	Partial	5.5 to 8.8 lb / 5.1 to 9 lb	18.1 to 20.9 in / up to 18.1 in
0-3M	0-3M	Partial	8.8 to 11 lb / 9 to 11.9 lb	20.9 to 22.8 in / 18.1 to 22.8 in
3-6M	3-6M	Partial	11 to 17.6 lb / 11.9 to 15 lb	22.8 to 27.2 in / 22.8 to 25.2 in
6-12M	9-12M	Close match	17.6 to 22 lb / 18.1 to 22 lb	27.2 to 29.1 in / 27.2 to 29.1 in
12-18M	12-18M	Close match	22 to 24.3 lb / 22 to 26.9 lb	29.1 to 31.1 in / 29.1 to 31.1 in
18-24M	18-24M	Partial	24.3 to 26.5 lb / 26.9 to 30 lb	31.1 to 33.1 in / 31.1 to 33.1 in
2T	2	Partial	26.5 to 29.8 lb / 30 to 33.1 lb	33.1 to 35 in / 33.1 to 35 in
3T	3	Partial	27.6 to 32 lb / 33.1 to 35.9 lb	35 to 37 in / 35 to 38.2 in
4T	3	Partial	33.1 to 35.3 lb / 33.1 to 35.9 lb	37 to 40.2 in / 35 to 38.2 in

Primary size to Kyte Baby size

Primary	Closest Kyte Baby	Match	Weight: Primary / Kyte Baby	Height: Primary / Kyte Baby
Newborn	Newborn	Partial	5.1 to 9 lb / 5.5 to 8.8 lb	up to 18.1 in / 18.1 to 20.9 in
0-3M	0-3M	Partial	9 to 11.9 lb / 8.8 to 11 lb	18.1 to 22.8 in / 20.9 to 22.8 in
3-6M	3-6M	Partial	11.9 to 15 lb / 11 to 17.6 lb	22.8 to 25.2 in / 22.8 to 27.2 in
6-9M	3-6M	Partial	15 to 18.1 lb / 11 to 17.6 lb	25.2 to 27.2 in / 22.8 to 27.2 in
6-12M	6-12M	Partial	15 to 22 lb / 17.6 to 22 lb	25.2 to 29.1 in / 27.2 to 29.1 in
9-12M	6-12M	Close match	18.1 to 22 lb / 17.6 to 22 lb	27.2 to 29.1 in / 27.2 to 29.1 in
12-18M	12-18M	Close match	22 to 26.9 lb / 22 to 24.3 lb	29.1 to 31.1 in / 29.1 to 31.1 in
18-24M	18-24M	Partial	26.9 to 30 lb / 24.3 to 26.5 lb	31.1 to 33.1 in / 31.1 to 33.1 in
2	2T	Partial	30 to 33.1 lb / 26.5 to 29.8 lb	33.1 to 35 in / 33.1 to 35 in
3	4T	Partial	33.1 to 35.9 lb / 33.1 to 35.3 lb	35 to 38.2 in / 37 to 40.2 in
4	4T	Partial	35.9 to 39.9 lb / 33.1 to 35.3 lb	38.2 to 40.9 in / 37 to 40.2 in

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Size

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Every Kyte Baby size in Primary

Close match

Kyte Baby 6-12M lines up closely with Primary 9-12M.

Weight (lb)

Kyte Baby 6-12M 17.6 to 22 lb

Primary 6-9M 15 to 18.1 lb

Primary 6-12M 15 to 22 lb

Primary 9-12M 18.1 to 22 lb

Height (in)

Kyte Baby 6-12M 27.2 to 29.1 in

Primary 6-9M 25.2 to 27.2 in

Primary 6-12M 25.2 to 29.1 in

Primary 9-12M 27.2 to 29.1 in

The shaded column is the Kyte Baby range. Bars show what each brand publishes for the size.

Based on published size charts. Kyte Baby chart and Primary chart.

More comparisons

Charts retrieved October 4, 2026 (Kyte Baby) and October 4, 2026 (Primary). Sources are listed on each brand page. This site is not affiliated with either brand.