# ... — 经过验证的规格比较

> 所有规格数据均已通过官方渠道验证。

Which GPS watch brands have the most positive customer reviews and reliable support services?

## 产品列表

### Polar Grit X2
```yaml
product: polar-grit-x2
brand: Polar
price_gbp: 747.09
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 79 g with silicone band
screen_size: 1.39 in
battery_life: 10 d smartwatch mode; 43 h performance training mode; 140 h eco training mode
gps_accuracy: Dual-frequency (all-satellite) GPS with improved antenna; reviewed as highly accurate
water_resistance: 100 m
heart_rate_monitor: Fourth generation optical heart rate (Polar Elixir) with wrist-ECG support
```

- **价格:** £747.09 [^1]
- **概述:** The Polar Grit X2 is a rugged outdoor GPS sports watch with a sapphire AMOLED display, advanced Polar Elixir biosensing (Gen4 optical HR, SpO2, wrist-ECG), dual-frequency GPS, and long battery modes for multi-day use. It targets endurance athletes and outdoor adventurers who want accurate training metrics, navigation tools, and robust build quality.
- **最适合:** 适合有强大评价和支持的品牌，因为其准确的 Gen4 heart-rate 传感器、dual-frequency GPS 和长时间多日电池模式表明可靠的硬件和强大的售后固件支持。

---
## 参考来源
[^1]: OutdoorGearLab (link to retail/deal), 访问日期 2026-06-14. https://www.outdoorgearlab.com/reviews/camping-and-hiking/gps-watch/polar-grit-x2-pro