diff --git a/core/archipelago/src/electrs_status.rs b/core/archipelago/src/electrs_status.rs
index 105560e2..6a2a4b30 100644
--- a/core/archipelago/src/electrs_status.rs
+++ b/core/archipelago/src/electrs_status.rs
@@ -10,8 +10,8 @@ const ELECTRUMX_HOST: &str = "127.0.0.1";
 const ELECTRUMX_PORT: u16 = 50001;
 const BITCOIN_RPC_URL: &str = "http://127.0.0.1:8332/";
 const ELECTRUMX_DATA_DIR: &str = "/var/lib/archipelago/electrumx";
-// Approximate final index size in bytes for mainnet (~55GB for ElectrumX full index)
-const ESTIMATED_FULL_INDEX_BYTES: f64 = 55_000_000_000.0;
+// Approximate final index size in bytes for mainnet (~130GB for ElectrumX full index as of 2026)
+const ESTIMATED_FULL_INDEX_BYTES: f64 = 130_000_000_000.0;
 
 /// Build Bitcoin RPC Basic auth header using shared credentials.
 async fn bitcoin_rpc_auth() -> String {
diff --git a/docker/electrs-ui/index.html b/docker/electrs-ui/index.html
index 09463362..962c3b13 100644
--- a/docker/electrs-ui/index.html
+++ b/docker/electrs-ui/index.html
@@ -367,11 +367,20 @@
                 var networkH = data.network_height || 0;
                 var pct = data.progress_pct || 0;
 
-                document.getElementById('indexedHeight').textContent = indexedH > 0 ? indexedH.toLocaleString() : (data.status === 'indexing' ? 'Building...' : '-');
+                // Show indexed height, or index size when still building
+                if (indexedH > 0) {
+                    document.getElementById('indexedHeight').textContent = indexedH.toLocaleString();
+                    document.getElementById('currentBlock').textContent = 'Block ' + indexedH.toLocaleString();
+                } else if (data.index_size) {
+                    document.getElementById('indexedHeight').textContent = data.index_size;
+                    document.getElementById('currentBlock').textContent = 'Index: ' + data.index_size;
+                } else {
+                    document.getElementById('indexedHeight').textContent = '-';
+                    document.getElementById('currentBlock').textContent = 'Block 0';
+                }
                 document.getElementById('networkHeight').textContent = networkH > 0 ? networkH.toLocaleString() : '-';
                 document.getElementById('indexSize').textContent = data.index_size || '-';
                 document.getElementById('progressPct').textContent = pct > 0 ? pct.toFixed(1) + '%' : '-';
-                document.getElementById('currentBlock').textContent = indexedH > 0 ? 'Block ' + indexedH.toLocaleString() : (data.index_size ? 'Index: ' + data.index_size : 'Block 0');
                 document.getElementById('syncPercentage').textContent = pct > 0 ? pct.toFixed(1) + '%' : '0%';
                 document.getElementById('syncProgressBar').style.width = Math.max(pct, 0.5) + '%';
 
@@ -380,12 +389,13 @@
                 var syncIcon = document.getElementById('syncIcon');
 
                 if (data.status === 'indexing') {
-                    statusTextEl.textContent = data.error || 'Building index...';
+                    var indexMsg = data.index_size ? 'Building index (' + data.index_size + ')...' : 'Building index...';
+                    statusTextEl.textContent = indexMsg;
                     statusTextEl.style.color = '#fbbf24';
                     statusDot.className = 'status-dot bg-amber animate-pulse';
                     document.getElementById('statusText').textContent = 'Indexing';
                     syncIcon.classList.add('animate-spin-slow');
-                    document.getElementById('connSubtitle').textContent = 'Connections will be available once ElectrumX has completed syncing.';
+                    document.getElementById('connSubtitle').textContent = 'Wallet connections will be available once indexing completes. This can take several hours on first run.';
                 } else if (data.status === 'error') {
                     statusTextEl.textContent = data.error || 'Unknown error';
                     statusTextEl.style.color = '#f87171';