Samsung Galaxy Ring 2 Review + Wearables War 2026: Galaxy Ring vs Apple Watch vs Oura Ring 4
By James Okafor · March 31, 2026 · 12 min read
Key Insight
The smart ring market is exploding — shipments jumped 49% in 2025 alone, and 2026 is shaping up to be the most competitive year yet. Samsung's Galaxy Ring 2 is poised to challenge Oura's crown, while Apple Watch continues to dominate the smartwatch segment. Here's who wins the 2026 wearables war.
Table of Contents
- 1. Samsung Galaxy Ring 2: What We Know So Far
- 2. Oura Ring 4: The Reigning Champion
- 3. Apple Watch Series 11 & Ultra 3: The Smartwatch Standard
- 4. Health Metrics That Actually Matter in 2026
- 5. The 2026 Smart Ring Market — Who's Winning?
- 📊 Head-to-Head: Galaxy Ring 2 vs Oura Ring 4 vs Apple Watch
- 🎯 Which Wearable Is Right for You?
- ❓ Frequently Asked Questions
1. Samsung Galaxy Ring 2: What We Know So Far
Samsung's original Galaxy Ring launched in 2024 and proved there was serious consumer appetite for ring-form health trackers from mainstream brands. In 2026, the Galaxy Ring 2 is in development — and it's shaping up to be a significant upgrade over its predecessor.
Based on the latest leaks and reports, the Galaxy Ring 2 is expected to feature a solid-state battery — a potential game-changer that could extend battery life well beyond the current 7-day rating. Samsung is also tipped to add an onboard body temperature sensor, rearranged sensor clusters for better signal accuracy, and deeper AI-powered health insights via Samsung Health.
The first-generation Galaxy Ring already stood out with its titanium build (available in Titanium Black, Silver, Gold, and Two-Tone), nine size options, and an extremely competitive no-subscription pricing model at ~$399. It weighed just 3g (size 12) and measured 7mm wide — making it among the slimmest rings available.
Samsung is currently navigating a patent dispute with Oura, which has reportedly delayed the Galaxy Ring 2's release to late 2026 or early 2027. Still, current Galaxy Ring users enjoy excellent features: heart rate monitoring, sleep tracking with sleep stages, SpO2 (blood oxygen), skin temperature trends, and seamless integration with the Galaxy Watch for dual-device insights.
⚡ Galaxy Ring 2 Rumored Specs
- Battery: 8+ days (solid-state battery upgrade)
- Sensors: HR, SpO2, body temperature, stress, sleep stages
- AI features: Galaxy AI integration, stress coaching, sleep quality tools
- Design: Slimmer profile, expanded size range (11 sizes expected)
- Price: From ~$399 and up
- Compatibility: Samsung Galaxy phones (Android exclusive)
2. Oura Ring 4: The Reigning Champion
If there's one wearable that defines the smart ring category, it's the Oura Ring 4. Recently valued at $11 billion and pulling in approximately $1 billion in annual revenue, Oura is the undisputed market leader — and the Ring 4 shows exactly why.
The Oura Ring 4 features 18K gold, silver, stealth, black, and brushed titanium finishes, weighs between 3.3–5.2g (size-dependent), and maintains a 2.88mm profile. Its sensor suite includes photoplethysmography (PPG) for heart rate and SpO2, an NTC temperature sensor, and a 3-axis accelerometer. Battery life tops out at 8 days — still the best in class for most users.
What truly sets Oura apart is its app. The Readiness Score, Sleep Score, and Activity Score give users an intuitive daily health summary. Deep dive into REM vs. deep sleep, HRV (heart rate variability), respiratory rate, and temperature deviation — all presented in a beautifully designed interface.
The caveat? Oura requires a $5.99/month subscription to unlock advanced features. The ring itself starts at $349 (heritage) or $399 (horizon shape). It works with both Android and iOS — a significant advantage over Samsung's Android-only Galaxy Ring.
In 2026, Oura is aggressively expanding beyond sleep tracking — partnering with Quest Diagnostics and Essence Healthcare to integrate bloodwork panels, and exploring digital ID and payment capabilities. The ring is evolving from a health tracker into an everyday utility device.
3. Apple Watch Series 11 & Ultra 3: The Smartwatch Standard
Apple Watch remains the world's best-selling smartwatch — and the Series 11 and Ultra 3, both launched in late 2025, continue that dominance heading into 2026. These aren't just fitness trackers; they're comprehensive health computers on your wrist.
Apple Watch Series 11 starts at $399. It offers up to 24 hours of battery life, the S10 chip, blood oxygen monitoring, ECG, sleep stages, sleep apnea notifications, cycle tracking, and — newly in 2025 — hypertension notifications. It's the most fully featured mainstream smartwatch available.
Apple Watch Ultra 3 takes things further for athletes and outdoors enthusiasts. At $799, it features a 49mm titanium case, sapphire crystal display, up to 42 hours of battery (or 60 hours in low power mode), a depth gauge, water temperature sensor, precision GPS, and a customizable action button. With 3,000 nits brightness and an always-on Retina display, it's virtually unmatched for extreme conditions.
The key limitation? Apple Watch requires an iPhone. It's iOS-exclusive by design. And while its health tracking is excellent, it doesn't match smart rings for discretion, sleep comfort, or battery life. Still, for users who want real-time fitness metrics, cellular connectivity, Siri, payments, and notifications — nothing touches the Apple Watch.
4. Health Metrics That Actually Matter in 2026
Not all health metrics are created equal. Here's a breakdown of what matters — and which device tracks it best:
💤 Sleep Quality & Stages
Winner: Oura Ring 4. Oura's sleep tracking is best-in-class, accurately detecting REM, light, and deep sleep stages. It also tracks respiratory rate and body temperature deviation during sleep — critical markers for illness and recovery. Smart rings generally outperform wrist-based devices for sleep because they're more comfortable to wear overnight and produce less motion artifact.
💓 HRV (Heart Rate Variability)
Winner: Oura Ring 4. HRV is the gold standard metric for recovery, stress, and autonomic health. Oura leads here with continuous nighttime HRV measurement. Apple Watch tracks HRV but only during sleep or specific breathing sessions. Galaxy Ring tracks HRV but its app's interpretation is less nuanced.
🪘 Blood Oxygen (SpO2)
Winner: Tie (all three). All three devices measure SpO2. Apple Watch has faced regulatory complications in some markets but has largely restored full functionality. Smart rings have a slight anatomical advantage — the finger has less subcutaneous fat and better light penetration than the wrist.
📈 Continuous Glucose Monitoring (CGM) Horizon
Not yet mainstream (2026). Non-invasive glucose monitoring remains the holy grail of consumer wearables. Apple has been rumored to be developing optical glucose sensing for Apple Watch for years. Oura is exploring partnerships in the diagnostics space. Samsung has filed patents around glucose-related sensors. Expect 2027–2028 to be the breakthrough window — it's not reliably available in any consumer wearable in early 2026.
💊 ECG & Hypertension
Winner: Apple Watch. ECG functionality (FDA-cleared) is exclusive to Apple Watch in this group. New for 2025, both Series 11 and Ultra 3 can now deliver hypertension notifications — a clinically meaningful feature. Neither Oura Ring 4 nor Galaxy Ring offer ECG.
5. The 2026 Smart Ring Market — Who's Winning?
The wearables landscape in 2026 is bifurcating: smartwatches dominate volume (~163.5M units shipped in 2025), but smart rings are the fastest-growing category — up 49% in 2025 and on track for a 29.3% CAGR through 2034. The global smart ring market hit $519 million in 2026 and is projected to reach $3.77 billion by 2034.
At CES 2026, the smart ring sector saw its most aggressive expansion yet, with new entrants targeting specialized use cases from athletic performance to medical diagnostics. The key battleground has shifted from hardware specs to software, AI-driven insights, and ecosystem integration.
Oura leads the smart ring segment in both revenue and valuation. Samsung is the formidable challenger — backed by its massive consumer electronics ecosystem. Apple isn't in the ring game (yet), but its Watch dominance in the broader wearables market can't be ignored. The real question for 2026 and beyond: will rings displace watches, or will they co-exist as complementary devices?
Most evidence points to co-existence — with rings excelling at passive 24/7 biometric monitoring (especially sleep) and smartwatches dominating real-time fitness tracking, notifications, and active use cases. The best setup for a serious health-focused user in 2026? Both.
📊 Head-to-Head: Galaxy Ring 2 vs Oura Ring 4 vs Apple Watch
| Feature | Galaxy Ring 2 🆕 | Oura Ring 4 | Apple Watch S11 / Ultra 3 |
|---|---|---|---|
| Form Factor | Titanium ring | Titanium ring | Titanium / aluminum smartwatch |
| Battery Life | 8+ days (rumored) | 7–8 days | 18–24 hrs / 42 hrs (Ultra 3) |
| Starting Price | ~$399 (rumored) | $349–$499 | $399 / $799 |
| Subscription | None ✓ | $5.99/month | None (Apple One optional) |
| Platform | Android (Samsung only) | Android + iOS ✓ | iOS (iPhone only) |
| Sleep Tracking | Good (stages, SpO2) | Best-in-class ✓ | Good (stages, apnea detection) |
| HRV | Yes (basic) | Yes (advanced) ✓ | Yes (during sleep) |
| ECG | No | No | Yes (FDA-cleared) ✓ |
| Body Temp | Yes (rumored upgrade) | Yes | Yes (wrist temp) |
| GPS | No (pairs with phone) | No | Yes (built-in) ✓ |
| Discretion | High ✓ | High ✓ | Low (visible smartwatch) |
| Best For | Samsung ecosystem users | Sleep + wellness focus | Athletes + iPhone users |
🎯 Which Wearable Is Right for You?
🏃 Athletes
Apple Watch Ultra 3 — built-in GPS, real-time metrics, VO2max, ECG, 42-hour battery. Nothing beats it for serious training.
💼 Professionals
Oura Ring 4 — discreet, works in any boardroom or formal setting. Track HRV and readiness without a screen constantly pinging you.
💊 Health-Focused
Oura Ring 4 + Apple Watch S11 — the power combo. Wear Oura for 24/7 passive health monitoring; Apple Watch for real-time workouts and ECG.
📱 Android/Samsung Users
Galaxy Ring (1st gen now, 2nd gen when available) — no subscription fee, seamless Galaxy ecosystem integration, beautiful design.
❓ Frequently Asked Questions
When will the Samsung Galaxy Ring 2 be released?
As of early 2026, Samsung's Galaxy Ring 2 is expected to launch in late 2026 or early 2027. An ongoing patent dispute with Oura has reportedly pushed back the release. No official announcement has been made by Samsung.
Is Oura Ring 4 worth the subscription cost?
For sleep and wellness-focused users, yes. At $5.99/month (or ~$69.99/year), the subscription unlocks the full Oura experience — including detailed sleep stage analysis, Readiness Score, trend data, and cycle insights. For casual trackers, the free tier still shows basic data, but the subscription delivers the real value.
Can you wear a smart ring and an Apple Watch together?
Absolutely — and many health-focused users do exactly that. The smart ring handles 24/7 passive biometric monitoring, especially sleep, while the Apple Watch handles workouts, notifications, ECG, and GPS. They complement each other rather than compete directly.
Does any wearable have non-invasive glucose monitoring in 2026?
No consumer wearable offers reliable non-invasive glucose monitoring in early 2026. Apple, Samsung, and Oura are all reportedly working toward this capability, with industry analysts pointing to 2027–2028 as the earliest realistic timeline for mainstream consumer deployment.
📖 Related Reading
⏱ Best Smartwatches 2026
The definitive ranking of every smartwatch worth buying this year.
🏃 Best Fitness Trackers 2026
From budget bands to premium health platforms — reviewed and ranked.
💍 Samsung Galaxy Ring (Gen 1) Review
A full review of the original Galaxy Ring — still one of the best smart rings available.
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