Quick answer
Choose the Sippy Straw Bottle if your baby is ready to tilt and sip from any angle. Choose the Sippy Spout Bottle if you want a gentle introduction to spout drinking using the same wide-neck bottle your baby already knows.
Why the bottle neck width matters for transition
Both bottles use Dr. Brown's Milestones system, but their neck widths affect how they fit existing bottle parts. The Sippy Straw Bottle has a narrow neck, so it works with narrow bottle nipples and rings you may already own. The Sippy Spout Bottle uses a wide neck, matching the standard Dr. Brown's wide-neck bottles. If your baby is used to a wide-neck bottle, switching to the spout feels natural because the bottle body stays the same.
Straw vs. spout: what each teaches
A straw teaches baby to suck liquid upward against gravity, which strengthens oral muscles needed for cup drinking. The weighted straw follows the liquid so baby can drink from any angle, even when the bottle is nearly empty. A spout is a shorter step from a bottle nipple; baby tilts the bottle up to drink, similar to a regular sippy cup. The spout is softer than hard plastic spouts, which may feel more familiar to a baby transitioning from a nipple.
Trade-offs at a glance
- Drinking angle: Straw bottle: baby can tilt and sip from any angle. Spout bottle: baby must tilt the bottle up to drink, similar to a traditional sippy cup.
- Familiarity: Spout bottle uses the same wide-neck bottle body baby already knows. Straw bottle uses a narrow neck, so bottle parts are different from a standard wide-neck bottle.
- Skill level: Straw requires stronger oral suction and coordination. Spout is a smaller step from bottle nipple and may be easier for babies new to sipping. If your baby struggles with a straw, try the spout first before moving to a straw later.
Product facts
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Dr. Brown's Milestones Narrow Sippy Straw Bottle with Silicone Handles, 8 oz/250 mL: Features a soft, 100% silicone weighted straw that moves with the liquid so baby can tilt and sip in any direction. This lets baby drink from any angle, reducing frustration when the bottle is nearly empty and encouraging independent drinking.
Dr. Brown's Milestones Narrow Sippy Straw Bottle with Silicone Handles, 8 oz/250 mL
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Dr. Brown's Milestones Wide-Neck Sippy Spout Bottle with Silicone Handles, 9 oz/270 mL: The soft silicone sippy spout is used in place of the nipple on the Dr. Brown’s bottle that’s already familiar to baby. Baby keeps the same bottle body and handles, so the transition feels less disruptive than switching to an entirely new cup.
Dr. Brown's Milestones Wide-Neck Sippy Spout Bottle with Silicone Handles, 9 oz/270 mL
Which one fits your baby?
Best for
- Babies ready for independent drinking who can handle a straw
- Parents who want a weighted straw that follows the liquid
Not ideal for
- Babies who are still learning to sip and may find a straw frustrating
- Parents who prefer to keep the same wide-neck bottle system for all transition stages
