NUK Simply Natural Baby Bottle with SafeTemp
- Bottle
- 5 ounces
- 2
- 5.6 ounces
- Better rated than 69%
- More reviewed than 55%
A recognized bottle line with a useful heat warning feature, sized for smaller feeds rather than growing appetites.
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How it ranks among the 276 bottles we track
4.7★ across 1,000 Amazon ratings, Bayesian-smoothed toward the category average.
1,000 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
50+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 276 bottles we track - how the scorecard works · full bottles data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The NUK Simply Natural bottle with SafeTemp comes in a 5 ounce size, sold here as a 2 pack. SafeTemp refers to a heat sensitive spot on the bottle that changes color to flag milk that is too hot.
NUK's Simply Natural line uses a wide, orthodontic shaped nipple meant to echo the shape of a breast, and the SafeTemp feature is aimed at parents warming bottles who want a visual check before feeding. At 5 ounces this is sized for younger infants who have not yet moved up to a larger bottle. Total weight is listed at 0.35 pounds for the pack of two.
- NUK Simply Natural bottle line
- 5 ounce capacity
- Sold as a 2 pack
- SafeTemp heat indicator
Who it's for
Parents of younger infants who want a smaller bottle size and a built in temperature check for warmed milk. Families who need larger bottles for older babies will outgrow the 5 ounce size quickly.
Strengths and trade-offs
Drawn from this product's published specifications.
- SafeTemp color change flags overly hot milk
- Sold as a 2 pack for backup on hand
- 5 ounce size is small once a baby's feeds increase
- Age range in the listing data is listed simply as Kid, not a specific age
Performance notes
SafeTemp works as a passive visual cue rather than an active thermometer, so it still needs the parent to glance at the sensor spot before feeding. The 5 ounce size and 0.35 pound total weight for the 2 pack mark this as an early stage bottle rather than one meant to carry through toddlerhood.
Specifications
| Brand | NUK |
|---|---|
| Capacity | 5 ounces |
| Pack Count | 2 |
| Item Weight | 5.6 ounces |
| Age Range | Kid |
Other NUK bottles
How it compares
This product against the closest alternatives we track in bottles.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| NUK Simply Natural Baby Bottle with SafeTempThis product | 4.7 / 5 | 1,000 | 4.2 / 5 |
| Lansinoh 60044677203700 BottleLansinoh | 4.8 / 5 | 52,400 | 4.7 / 5 |
| Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby BottleDr | 4.8 / 5 | 52,000 | 4.7 / 5 |
| Philips SCY903/04 BottlePhilips | 4.8 / 5 | 25,000 | 4.7 / 5 |
| Medela 87095 BottleMedela | 4.8 / 5 | 15,100 | 4.7 / 5 |
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Questions about the NUK bottles
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What does SafeTemp do?
It is a heat sensitive spot on the bottle that changes color as a visual warning if the contents are too hot.
How many bottles come in this pack?
This listing is for a 2 pack.
What size are the bottles?
Each bottle holds 5 ounces.