Unveiling LATAM’s #1 Mobile Experience Countries: Who Leads in QoE in Q4 2025?
Latin America’s mobile networks are evolving fast, but users don’t experience progress in the same way everywhere.
That’s why MedUX launched “Unveiling #1 QoE Countries in LATAM,” a crowdsourcing-based benchmark built on real-world measurements. The goal is simple: translate complex network performance into a single, comparable QoE Score, and show where mobile experience truly leads (and where it still falls short). The results reveal a very uneven landscape: some countries perform well across multiple services, others lead in specific use cases, and others still struggle to deliver a consistent everyday experience.
Measurement Scope, Testing, and QoE Benchmarking Methodology
MedUX crowdsourcing is designed to capture mobile experience as users live it: across real devices, real apps, and real mobility patterns. This LATAM benchmark is based on crowdsourced measurements collected in Q4 2025. The scope covered more than 20 countries, over 100 million performance tests executed, approximately 8.6 billion radio samples collected, more than 650 million inhabitants, and over 17 million square kilometers monitored.
Download the full report for detailed insights here.
Real Users, Real Services
The MedUX crowdsourcing platform collects data through a lightweight SDK embedded in real applications. This process combines Passive measurements (signal, network type, mobility patterns, handovers, etc.) and Active tests that replicate typical user actions—browsing, downloads, streaming, social media, and gaming—under standardized conditions to enable fair comparisons across countries. To keep results realistic and avoid distorting user behavior, active tests are launched only when the device is idle and connected.
Data Validation, Representativeness, and Privacy
MedUX applies a rigorous multi-stage process to filter corrupted samples, duplicates, outliers, and inconsistent device/OS patterns. Key KPIs are calculated with statistical rigor at the national level (95% confidence level and up to a five percent margin of error when conditions are met). Privacy is foundational: MedUX does not collect personally identifiable information (PII), and datasets are processed with strong anonymization and security practices.
QoE Ranking and Awards: Brazil takes the lead
To make results easy to compare, MedUX consolidates performance into a Total QoE Score (out of 5). It combines results across Reliability, Data & OTT, Network Responsiveness, Value for Speed, and Streaming into one clear indicator of everyday mobile experience.
The top QoE countries in LATAM (Q4 2025)
- #1 Brazil: QoE Score 3.31/5 (best overall experience; strong balance across categories)
- #2 Guatemala: QoE Score 3.29/5 (very strong responsiveness and Data & OTT performance)
- #3 Uruguay: QoE Score 3.17/5 (solid overall; strong Value for Speed and Gaming)
- #4 El Salvador: QoE Score 3.06/5 (good performance with web browsing and social media standing out)
Mobile Experience Awards (LATAM Winners)
Awards are granted to the best-performing country in each category. When results are statistically indistinguishable, countries can share an award.
- Best Mobile Experience (Overall QoE): Brazil
- Best Reliability: Brazil & Guatemala (co-winners)
- Best Value for Speed: Brazil
- Best Streaming: Brazil
- Best Data & OTT: Guatemala
- Best Network Responsiveness: Guatemala
The key message remains clear: LATAM leadership is not just about speed. The strongest countries are the ones that combine performance, consistency, and responsiveness in the services people use every day.
Download the full report for detailed insights here.
5G is Growing — But Still Concentrated in Hotspots
The report’s 5G snapshots show a clear reality: 5G is far from universal in LATAM once suburban and rural areas are included. Availability still clusters around major cities, and 4G remains predominant across the region. MedUX describes LATAM as being in a “coverage-to-adoption” transition: 5G exists, but the next step is accelerating take-up and traffic migration so 5G becomes the default, not just an overlay.
A Few Markets are Closer to “5G Default”
Looking at radio access technology usage among 5G-capable devices, Puerto Rico is a clear leader, already 5G-dominant with 89.69% usage. Uruguay is near parity with 50.4% 5G usage. Brazil (44.2%) and Chile (40%) show meaningful 5G presence, but 4G still carries most usage. Legacy networks are also still visible: 3G usage remains non-trivial in some markets.
Take-up is a Challenge — And Device Readiness is a Big Part of the Story
MedUX estimates that only about 36% of users in LATAM have 5G-capable devices today. Among that 5G-capable base, take-up varies widely. Puerto Rico is a clear outlier at 89.3%, and Chile (56.1%) is the only other market above 50%. Several countries sit around 45%, including Costa Rica, Guatemala, Aruba, Uruguay, and Mexico. Big markets like Brazil (37.4%) and Argentina (33.4%) remain below 40%.
Download the full report for detailed insights here.
Key Findings: What Separates Leaders from Laggards?
Speed: Strong Peaks Exist — But Performance is Uneven
LATAM shows big differences in top-end throughput. Puerto Rico, Brazil, Chile, Uruguay, and Guatemala lead in P90 download speed (above 100 Mbps). Puerto Rico stands out with P90 DL at about 299 Mbps, while Brazil leads P90 UL at about 41 Mbps. A consistent theme in the report is that even where a country posts strong headline performance, local differences remain visible, with much weaker performance outside main cities.
Latency: Low-Latency is Still the Exception
The report is very direct: in LATAM, low latency remains far from the “sub-15 ms” vision often associated with 5G. Best-performing markets sit around 30–39 ms, including Argentina (30 ms), Jamaica (32 ms), Uruguay (35 ms), Paraguay (36 ms), and Brazil (39 ms). The slowest markets reach about 89–95 ms (Peru 89 ms, Bolivia 94 ms, Chile 95 ms). This is why Network Responsiveness becomes such a strong differentiator, it shapes how “instant” the internet feels, even when raw speeds look decent.
Streaming: A Clear “Haves vs. Have-Nots” Split for 4K
Streaming quality is evolving across LATAM, but 4K playback highlights the real gap. Puerto Rico leads with about 32.71% 4K playbacks, while Brazil and Chile sit around 20%. Several markets remain below 10%. Brazil wins the Streaming award not only because of resolution, but because it also delivers strong stability, including about 98% playbacks without stalls in the key findings snapshot.
Time-to-Content Drives Everyday Experience
This is where Guatemala shines. The report highlights Guatemala as a leader in social media responsiveness (TTFB about 469 ms) and fast browsing/usage. For web browsing, average loading time ranges sharply across LATAM: Guatemala leads at about 1.8 seconds, while markets like Jamaica lag noticeably at about 3.1 seconds.
Gaming: Stability and Jitter Matter More Than Peak Speed
For gaming experience, countries leading on stability and responsiveness include Argentina, Uruguay, and Guatemala. Argentina stands out in the key findings snapshot with about 88% of samples showing jitter less than 20 ms, a strong indicator for smooth real-time play.
Download the full report for detailed insights here.
How LATAM Compares — And The Takeaway
If LATAM wants to turn 5G rollout into a clear step-change in everyday QoE, three priorities stand out from the report’s findings:
- Make 5G the default beyond major cities (coverage is not enough; traffic migration matters).
- Improve consistency and responsiveness (latency is still too high for truly “instant” experiences in many markets).
- Optimize end-to-end delivery for real services (streaming, social, web, and gaming depend on much more than radio speed).
At MedUX, we will keep expanding our crowdsourcing benchmarks and country deep dives through the MedUX Connectivity Observatory — turning massive, real-world experience data into clear guidance for operators, regulators, and digital stakeholders.
To learn more about how MedUX Crowdsourcing and the MedUX QoE Scorecard can support benchmarking, regulatory reporting, and performance improvement, contact us at hello@medux.com.
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About MedUX
MedUX is the leading Quality of Experience (QoE) company, providing comprehensive and innovative solutions for measuring the performance of fixed, mobile, and TV telecommunications networks for telecom operators, governments, and digital enterprises. With a focus on delivering grand scale, end-to-end network, and service visibility, MedUX leverages real-time customer perspective data and advanced analytics to ensure quality and regulatory compliance, while also offering valuable insights for optimizing networks and improving customer experiences. With a presence in over 25 countries across Europe, America, Africa, and the Middle East, and monitoring over 60 operators worldwide, MedUX’s patented technology and expertise make it a trusted partner for improving the digital experiences of customers everywhere.