SLF Electrolyte Comparison · 2026
Re-Lyte Kids
Hot-Weather Endurance · Everyday Hydration · Exercise & Workouts
Check Price at TargetRead full review ↗
Waterboy Hydration Electrolyte Drink Mix
Endurance Athletes · Everyday Hydration · Exercise & Workouts
Check Price at TargetRead full review ↗Re-Lyte Kids
Best overall data score for this matchup based on formula, value, rating, and intended use.
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Continue to the full Brand Hubs for products, flavors, buying guides, and every published comparison.
At a Glance
A quick side-by-side look at nutrition, value, and overall performance.
| Feature | Re-Lyte Kids | Waterboy Hydration Electrolyte Drink Mix | 🏆 Edge |
|---|---|---|---|
| Sodium | 340 mg | 550 mg | Waterboy Hydration Electrolyte Drink Mix |
| Potassium | 150 mg | 140 mg | Re-Lyte Kids |
| Magnesium | 25 mg | 20 mg | Re-Lyte Kids |
| Sugar | 0.0 g | 0.0 g | Tie |
| Calories | 0 | 0 | Tie |
| Sweetener | Rebaudioside A (Stevia Leaf Extract) | Organic Stevia Leaf Extract | Preference |
| Cost per serving | $0.80 | $1.42 | Re-Lyte Kids |
| SLF rating | ★★★★★4.7/5 | ★★★★★4.7/5 | Tie |
Owala 12oz Kids' Stainless Steel Straw Tumbler
A kid-friendly insulated tumbler that keeps water cold and makes everyday hydration easy. The 12 oz size, straw and spill-resistant design make it a great pick for school, sports and everyday use.
Functional Ingredients
Additional active or performance-oriented ingredients recorded in the SLF database.
Re-Lyte Kids
- Coconut Water Powder (65 mg)Redmond Real Salt Trace MineralsFruit and Vegetable Extracts for Color
Best for zero-sugar routine hydration, youth sports, travel, and warm-weather use.
Waterboy Hydration Electrolyte Drink Mix
- DHM (Dihydromyricetin)Ginger RootPrickly PearL-TheanineElectrolyte Blend
Waterboy Daily is a strong zero-sugar, performance-ready choice for everyday hydration, travel, moderate exercise, hot weather, but it is less compelling for people needing…
Key Differences
The most meaningful data-backed differences in this matchup.
Waterboy Hydration Electrolyte Drink Mix
Why it matters: Higher sodium can better replace larger sweat losses during prolonged exercise or heat.
Re-Lyte Kids
Why it matters: A lower cost per serving can make frequent use more practical.
Re-Lyte Kids
Why it matters: Potassium supports fluid balance and normal muscle function.
Who Should Choose Each Product?
Use these guidelines to find the best fit for your hydration needs and lifestyle.
Choose Re-Lyte Kids if…
- Hot-Weather Endurance
- Everyday Hydration
- Exercise & Workouts
- Travel
- Heat & Outdoor Work
- Keto & Low-Carb
- Everyday Kids Hydrationyouth Sportshot Weathertravelfamilies Avoiding Added Sugar
- Kids
Best for zero-sugar routine hydration, youth sports, travel, and warm-weather use.
Choose Waterboy Hydration Electrolyte Drink Mix if…
- Endurance Athletes
- Everyday Hydration
- Exercise & Workouts
- Recovery
- Travel
- Keto & Low-Carb
- Moderate Exercise
- Hot Weather
Waterboy Daily is a strong zero-sugar, performance-ready choice for everyday hydration, travel, moderate exercise, hot weather, but it is less compelling for people needing very high sodium replacement after prolonged endurance events.
Pros and Considerations
Re-Lyte Kids
✓ Strengths
- Moderate sodium level suits everyday hydration needs
- Sugar-free formula
- Competitive cost per serving
- Fits keto and low-carbohydrate lifestyles
● Keep in Mind
- Taste and electrolyte strength may not suit every preference
Waterboy Hydration Electrolyte Drink Mix
✓ Strengths
- Substantial sodium supports exercise and hot-weather hydration
- Sugar-free formula
- Fits keto and low-carbohydrate lifestyles
● Keep in Mind
- Taste and electrolyte strength may not suit every preference
Re-Lyte Kids
SLF scoring considers nutrition, formula, price, certifications, intended use, and value.
Why it earns the edge
- Moderate sodium level suits everyday hydration needs
- Sugar-free formula
- Competitive cost per serving
- Fits keto and low-carbohydrate lifestyles
Choose Waterboy Hydration Electrolyte Drink Mix instead if you:
- Endurance Athletes
- Everyday Hydration
- Exercise & Workouts
- Recovery
Choose Your Electrolyte
Shop the product that best fits your needs. Amazon is shown first when available, with a direct brand option as the fallback.
Re-Lyte Kids
Check Price at Target Waterboy Hydration Electrolyte Drink Mix
Check Price at TargetFind the electrolyte that fits your needs
Explore the full database by activity, sodium level, sugar preference, goals, budget, and retailer.
Frequently Asked Questions
Data-backed answers based on the current SLF product records.
Which has more sodium?
Waterboy Hydration Electrolyte Drink Mix contains 550 mg of sodium per serving, compared with 340 mg. Higher sodium may be more useful when replacing larger sweat losses during prolonged exercise or hot conditions.
Which has less sugar?
Tie has less sugar at 0.0 g per serving, versus 0.0 g. This may matter for people limiting added sugar.
Which is less expensive per serving?
Re-Lyte Kids is currently less expensive at $0.80 per serving, compared with $1.42. Pricing can change by retailer and package size.
What functional ingredients does each product include?
Re-Lyte Kids lists Coconut Water Powder (65 mg)Redmond Real Salt Trace MineralsFruit and Vegetable Extracts for Color. Waterboy Hydration Electrolyte Drink Mix lists DHM (Dihydromyricetin)Ginger RootPrickly PearL-TheanineElectrolyte Blend. Functional ingredients supplement the core electrolyte profile but do not automatically make one product better for every use.
Which product is better overall?
Re-Lyte Kids earns the higher SLF comparison score based on the available formula, value, rating, and intended-use data. Waterboy Hydration Electrolyte Drink Mix may still be the better fit when its specific use cases align more closely with your needs.
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Nutrition facts, pricing, and availability can change. Verify the current label before purchasing. This comparison is informational and is not medical advice.